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2618:, England. It is 32.1 m (105 ft) long. Built in the late 1820s, the exact date is unknown, however probably built in 1828 or 1829. This is the first tunnel in the world constructed under a railway line. The construction of the Liverpool to Manchester Railway ran over a horse-drawn tramway that ran from the Sutton collieries to the Liverpool-Warrington turnpike road. A tunnel was bored under the railway for the tramway. As the railway was being constructed the tunnel was made operational, opening prior to the Liverpool tunnels on the Liverpool to Manchester line. The tunnel was made redundant in 1844 when the tramway was dismantled.
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under construction. The station and tunnel was opened to passengers in 1836. In the 1880s the tunnel was converted to a deep cutting, open to the atmosphere, being four tracks wide. This is the only occurrence of a major tunnel being removed. Two short sections of the original tunnel still exist at Edge Hill station and further towards Lime Street, giving the two tunnels the distinction of being the oldest rail tunnels in the world still in use, and the oldest in use under streets. Over time a 525 m (0.326 mi) section of the deep cutting has been converted back into tunnel due to sections having buildings built over.
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Environmental
Information estimates total damages to be 40 billion dollars. According to an article issued by Steve Hymon of TheSource – Transportation News and Views, there was no serious damage sustained by the LA subway system. Metro, the owner of the LA subway system, issued a statement through their engineering staff about the design and consideration that goes into a tunnel system. Engineers and architects perform extensive analysis as to how hard they expect earthquakes to hit that area. All of this goes into the overall design and flexibility of the tunnel.
1151:. This pressurizes the ground ahead of the TBM cutter head to balance the water pressure. The operators work in normal air pressure behind the pressurized compartment, but may occasionally have to enter that compartment to renew or repair the cutters. This requires special precautions, such as local ground treatment or halting the TBM at a position free from water. Despite these difficulties, TBMs are now preferred over the older method of tunnelling in compressed air, with an airlock/decompression chamber some way back from the TBM, which required operators to
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3553:. Elaborately engineered 300-metre (1,000 ft) tunnels built to smuggle drugs across the Mexico-US border were estimated to require up to 9 months to complete, and an expenditure of up to $ 1 million. Some of these tunnels were equipped with lighting, ventilation, telephones, drainage pumps, hydraulic elevators, and in at least one instance, an electrified rail transport system. Secret tunnels have also been used by thieves to break into bank vaults and retail stores after hours. Several tunnels have been discovered by the
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2743:. The tunnel is split into two tunnels with a short open air cutting linking the two. The cutting is where the cable hauled trains from Edge Hill were hitched and unhitched. The two tunnels are effectively one on the same centre line and are regarded as one. However, as initially the 2,375 m (1.476 mi) long Victoria section was originally cable hauled and the shorter 862 m (943 yd) Waterloo section was locomotive hauled, two separate names were given, the short section was named the
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7.2 ripped through Kobe Japan in 1995, leaving no damage to the tunnels themselves. Entry portals sustained minor damages, however these damages were attributed to inadequate earthquake design that originated from the original construction date of 1965. In 2010 a magnitude 8.8, massive by any scale, afflicted Chile. Entrance stations to subway systems suffered minor damages, and the subway system was down for the rest of the day. By the next afternoon, the subway system was operational again.
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2632:, a single track railway tunnel 266 m long (873 ft), was bored from Edge Hill to Crown Street to serve the world's first intercity passenger railway terminus station. The station was abandoned in 1836 being too far from Liverpool city centre, with the area converted for freight use. Closed down in 1972, the tunnel is disused. However it is the oldest passenger rail tunnel running under streets in the world.
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3352:, in England, opened in 2010, is notable in that it converted an existing railway cutting into a tunnel to create ground to build a supermarket over the tunnel. The railway in the cutting was first opened around 1906, stretching over 104 years to complete a railway tunnel. The tunnel was built using the cover method with craned in prefabricated forms in order to keep the busy railway operating. A branch of the
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2404:. The tunnel's existence was recorded by Herodotus (as was the mole and harbour, and the third wonder of the island, the great temple to Hera, thought by many to be the largest in the Greek world). The precise location of the tunnel was only re-established in the 19th century by German archaeologists. The tunnel proper is 1,030 m long (3,380 ft) and visitors can still enter it.
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pilot tunnel (or "drift tunnel") may be driven ahead of the main excavation. This smaller tunnel is less likely to collapse catastrophically should unexpected conditions be met, and it can be incorporated into the final tunnel or used as a backup or emergency escape passage. Alternatively, horizontal boreholes may sometimes be drilled ahead of the advancing tunnel face.
1063:, where bored tunnels were used for stations and passenger access. Nevertheless, the original parts of the London Underground network, the Metropolitan and District Railways, were constructed using cut-and-cover. These lines pre-dated electric traction and the proximity to the surface was useful to ventilate the inevitable smoke and steam.
2551:, England. The tunnel was built simultaneously with the 1793 Fritchley railway tunnel. The tunnel partially collapsed in 1900 splitting the Cromford Canal, and has not been used since. The Friends of Cromford Canal, a group of volunteers, are working at fully restoring the Cromford Canal and the Butterley Tunnel.
1289:. Other support measures can include steel arches, rock bolts, and mesh. Technological developments in sprayed concrete technology have resulted in steel and polypropylene fibers being added to the concrete mix to improve lining strength. This creates a natural load-bearing ring, which minimizes the rock's
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Earthquakes are one of nature's most formidable threats. A magnitude 6.7 earthquake shook the San
Fernando valley in Los Angeles in 1994. The earthquake caused extensive damage to various structures, including buildings, freeway overpasses and road systems throughout the area. The National Center for
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is sometimes necessary during the excavation of a tunnel. They are usually circular and go straight down until they reach the level at which the tunnel is going to be built. A shaft normally has concrete walls and is usually built to be permanent. Once the access shafts are complete, TBMs are lowered
1028:: A trench is excavated, with ground support as necessary, and the tunnel is constructed in it. The tunnel may be of in situ concrete, precast concrete, precast arches, or corrugated steel arches; in early days brickwork was used. The trench is then carefully back-filled and the surface is reinstated.
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supermarket chain occupies the newly created ground above the railway tunnel, with an adjacent existing railway station at the end of the tunnel. During construction, a portion of the tunnel collapsed when soil cover was added. The prefabricated forms were covered with a layer of reinforced concrete
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engineered and built by the
Butterley company, however reverted to horses. Steam trains used the tunnel continuously from the 1840s when the railway was converted to a narrow gauge. The line closed in 1933. In the Second World War, the tunnel was used as an air raid shelter. Sealed up in 1977 it was
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Tunnels are more stable under a symmetric load, which improves ground-lining interaction. Improving the tunnel lining by placing thicker and stiffer sections without stabilizing surrounding poor ground may result in excess seismic forces in the lining. Backfilling with non-cyclically mobile material
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of buildings and land, with potentially lengthy planning inquiries, is eliminated. Disadvantages of TBMs arise from their usually large size – the difficulty of transporting the large TBM to the site of tunnel construction, or (alternatively) the high cost of assembling the TBM on-site, often within
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control is very important in tunnel construction. Water leaking into a tunnel or vertical shaft will greatly decrease stand-up time, causing the excavation to become unstable and risking collapse. The most common way to control groundwater is to install dewatering pipes into the ground and to simply
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tunnel, Liverpool. A two track rail tunnel, 1.811 km (1.125 mi) long was bored under the metropolis from Edge Hill in the east of the city to Lime Street in
Liverpool's city centre. The tunnel was in use from 1832 being used to transport building materials to the new Lime St station while
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This same trend of limited subway damage following an earthquake can be seen in many other places. In 1985 a magnitude 8.1 earthquake shook Mexico City; there was no damage to the subway system, and in fact the subway systems served as a lifeline for emergency personnel and evacuations. A magnitude
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was near totally removed, apart from a 50-metre (55 yd) section at Edge Hill and a section nearer to Lime Street, as four tracks were required. The tunnel was dug out into a very deep four-track cutting, with short tunnels in places along the cutting. Train services were not interrupted as the
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under a contract with the local community. Eupalinos organised the work so that the tunnel was begun from both sides of Mount Kastro. The two teams advanced simultaneously and met in the middle with excellent accuracy, something that was extremely difficult in that time. The aqueduct was of utmost
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in west Paris consists of two bored tunnel tubes, the eastern one of which has two levels for light motorized vehicles, over a length of 10 km (6.2 mi). Although each level offers a physical height of 2.54 m (8.3 ft), only traffic up to 2 m (6.6 ft) tall is allowed in
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Box jacking is similar to pipe jacking, but instead of jacking tubes, a box-shaped tunnel is used. Jacked boxes can be a much larger span than a pipe jack, with the span of some box jacks in excess of 20 metres (66 ft). A cutting head is normally used at the front of the box being jacked, and
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There are three basic types of tunnel construction in common use. Cut-and-cover tunnels are constructed in a shallow trench and then covered over. Bored tunnels are constructed in situ, without removing the ground above. Finally, a tube can be sunk into a body of water, which is called an immersed
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Conventional desk and preliminary site studies may yield insufficient information to assess such factors as the blocky nature of rocks, the exact location of fault zones, or the stand-up times of softer ground. This may be a particular concern in large-diameter tunnels. To give more information, a
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and by other geophysical techniques. An informed choice can then be made of machinery and methods for excavation and ground support, which will reduce the risk of encountering unforeseen ground conditions. In planning the route, the horizontal and vertical alignments can be selected to make use of
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to transport limestone to its ironworks factory. The
Butterley company engineered and built its own railway. A victim of the depression the company closed after 219 years in 2009. The tunnel is the world's oldest railway tunnel traversed by rail wagons. Gravity and horse haulage was utilised. The
2467:. The tunnel is presently under a narrow part of a lake formed by a dam some kilometers further downstream. Estimated to have been built more than 2000 years ago, possibly by the same civilization that also built the royal tombs in a rock face nearby, it is assumed to have had a defensive purpose.
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the 4.0 km (2.5 mi) double-deck roadway tunnel. In this scenario, traffic continues normally. Only during heavy, prolonged rains when the threat of extreme flooding is high, the upper tunnel tube is closed off to vehicles and automated flood control gates are opened so that water can be
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There are a variety of TBM designs that can operate in a variety of conditions, from hard rock to soft water-bearing ground. Some TBMs, the bentonite slurry and earth-pressure balance types, have pressurized compartments at the front end, allowing them to be used in difficult conditions below the
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An open building pit consists of a horizontal and a vertical boundary that keeps groundwater and soil out of the pit. There are several potential alternatives and combinations for (horizontal and vertical) building pit boundaries. The most important difference with cut-and-cover is that the open
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in London. This construction form generally has two levels, which allows economical arrangements for ticket hall, station platforms, passenger access and emergency egress, ventilation and smoke control, staff rooms, and equipment rooms. The interior of Canary Wharf station has been likened to an
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or contiguous bored piling. Only a shallow excavation is needed to construct the tunnel roof using precast beams or in situ concrete sitting on the walls. The surface is then reinstated except for access openings. This allows early reinstatement of roadways, services, and other surface features.
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was chosen over a massively high bridge for defense reasons; it was feared that aircraft could destroy a bridge in times of war, not merely impairing road traffic but blocking the river to navigation. Maintenance costs of a massive bridge to allow the world's largest ships to navigate under were
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Tunnels are dug in types of materials varying from soft clay to hard rock. The method of tunnel construction depends on such factors as the ground conditions, the groundwater conditions, the length and diameter of the tunnel drive, the depth of the tunnel, the logistics of supporting the tunnel
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was constructed at
Persepolis in Iran at the same time as the construction of its foundation in 518 BC. In most places the network was dug in the sound rock of the mountain and then covered by large pieces of rock and stone followed by earth and piles of rubble to level the ground. During
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is the amount of time a newly excavated cavity can support itself without any added structures. Knowing this parameter allows the engineers to determine how far an excavation can proceed before support is needed, which in turn affects the speed, efficiency, and cost of construction. Generally,
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opened in 1842, is a 3.9-kilometre (2.4 mi) subterranean wagonway with a maximum depth of 26 metres (85 ft) that drops 222 feet (68 m) from entrance to exit. The tunnel runs under
Newcastle upon Tyne, England, and originally exited at the River Tyne. It remains largely intact.
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are used to push specially made pipes through the ground behind a TBM or shield. This method is commonly used to create tunnels under existing structures, such as roads or railways. Tunnels constructed by pipe jacking are normally small diameter bores with a maximum size of around 3.2 metres
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was the world's first deep-level underground railway. By 1892 the extensions on land from
Birkenhead Park station to Liverpool Central Low level station gave a tunnel 5.02 km (3.12 mi) in length. The under river section is 1.21 km (0.75 mi) in length, and was the longest
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The three eastern portals of
Liverpool Edge Hill tunnels, built into a hand-dug deep cutting. The left tunnel with tracks is the short 1846 second Crown Street Tunnel, still used for shunting. In the center, partially hidden by undergrowth, is the disused 2.03 km (1.26 mi) 1829
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is also very important in determining stand-up time. If a tunnel excavation is wider than it is high, it will have a harder time supporting itself, decreasing its stand-up time. A square or rectangular excavation is more difficult to make self-supporting, because of a concentration of
627:, using pipes which are inserted into the ground surrounding the excavation, which are then cooled with special refrigerant fluids. This freezes the ground around each pipe until the whole space is surrounded with frozen soil, keeping water out until a permanent structure can be built.
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A major disadvantage of cut-and-cover is the widespread disruption generated at the surface level during construction. This, and the availability of electric traction, brought about London
Underground's switch to bored tunnels at a deeper level towards the end of the 19th century.
3622:, a Norwegian island with a hat-shaped silhouette, has a natural tunnel in the middle of the hat, letting light come through. The 160-metre (520 ft) long, 35-metre (115 ft) high, and 20-metre (66 ft) wide tunnel is said to be the hole made by an arrow of the angry
1138:(TBMs) and associated back-up systems are used to highly automate the entire tunnelling process, reducing tunnelling costs. In certain predominantly urban applications, tunnel boring is viewed as a quick and cost-effective alternative to laying surface rails and roads. Expensive
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to the bottom and excavation can start. Shafts are the main entrance in and out of the tunnel until the project is completed. If a tunnel is going to be long, multiple shafts at various locations may be bored so that entrance to the tunnel is closer to the unexcavated area.
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metro network, with work started and abandoned because of costs. The tunnel is in excellent condition and is still being considered for reuse by Merseyrail, maybe with an underground station cut into the tunnel for Liverpool university. The river portal is opposite the new
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both decks are for motor vehicles. In each direction, only cars and taxis travel on the 2.6 m (8.5 ft) high two-lane upper deck, and heavier vehicles, like trucks and buses, as well as cars, may use the 4.0 m (13 ft) high single-lane lower level.
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this tunnel tube, and motorcyclists are directed to the other tube. Each level was built with a three-lane roadway, but only two lanes per level are used – the third serves as a hard shoulder within the tunnel. The A86 Duplex is Europe's longest double-deck tunnel.
3379:, 2016, is the longest, 8.58 km (5.33 mi), mountain tunnel in South America. It crosses beneath a mountain at 2,500 m (8,202.1 ft) above sea level with six traffic lanes, and it has a parallel emergency tunnel. The tunnel is subject to serious
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The definition of what constitutes a tunnel can vary widely from source to source. For example, in the United Kingdom, a road tunnel is defined as "a subsurface highway structure enclosed for a length of 150 metres (490 ft) or more." In the United States, the
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was opened in late 1886, at 7.008 km (4.355 mi) long, although only 3.62 km (2.25 mi) of the tunnel is actually under the River Severn. The tunnel replaced the Mersey Railway tunnel's longest under water record, which was held for less than a
2747:. In 1895 the two tunnels were converted to locomotive haulage. Used until 1972, the tunnel is still in excellent condition. A short section of the Victoria tunnel at Edge Hill is still used for shunting trains. The tunnel is being considered for reuse by the
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The history of ancient tunnels and tunneling in the world is reviewed in various sources which include many examples of these structures that were built for different purposes. Some well known ancient and modern tunnels are briefly introduced below:
3616:. Hindus believe that crawling through the tunnel (which they believe was created by a Hindu god) from one end to the other will wash away all of one's sins and thus allow one to attain rebirth. Only men are permitted to crawl through the tunnel.
2909:, between Switzerland and Italy. It is 19.8 km (12.3 mi) long, and was the longest tunnel in the world until 1982. It was also the deepest tunnel in the world, with a maximum rock overlay of approximately 2,150 m (7,050 ft).
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in Tennessee, an 88 m long (289 ft) water diversion tunnel, 4.50 m × 2.45 m high (14.8 ft × 8.0 ft), to power a water wheel, was built by slave labour in 1819, being the first full-scale tunnel in North
945:. Also, the land needed for excavation and construction staging, and the proper machinery must be selected. Large infrastructure projects require millions or even billions of dollars, involving long-term financing, usually through issuance of
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with his hands, inserts with his feet a tool with a cup-like rounded end, then turns the tool with his hands to extract a section of soil, which is then placed on the waste extract. Clay-kicking is a specialized method developed in the
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techniques for developing a major structure. Understanding the amount of time the project requires, and the amount of labor and materials needed is a crucial part of project planning. The project duration must be identified using a
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had ordered built in 76–77 AD. A modern road, the SS 3 Flaminia, still uses this tunnel, which had a precursor dating back to the 3rd century BC, remnants of this earlier tunnel (one of the first road tunnels) are also still
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for an infrastructure such as a tunnel must be identified. Political disputes can occur, as in 2005 when the US House of Representatives approved a $ 100 million federal grant to build a tunnel under New York Harbor. However, the
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was originally to have road vehicles running on the upper deck and trams on the lower. During construction the tram usage was cancelled. The lower section is only used for cables, pipes and emergency accident refuge enclosures.
1587:, the largest-diameter bored tunnel in the world. At construction this was a combination bidirectional rail and truck pathway on the lower deck with automobiles above, now converted to one-way road vehicle traffic on each deck.
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the best ground and water conditions. It is common practice to locate a tunnel deeper than otherwise would be required, in order to excavate through solid rock or other material that is easier to support during construction.
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Lined and grouted tunnels are safer than unlined tunnels in rock. Shaking damage can be reduced by stabilizing the ground around the tunnel and by improving the contact between the lining and the surrounding ground through
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These last two shafts are now expected to be done by 2026, according to the DEP, but the tunnel still won't be complete. The original plans called for one more extension—a 14-mile conduit between Yonkers, the Bronx and
2572:'s new customs duties. Jefferson had ordered local militias to help the Custom House in each port collect these dues, but the smugglers, led by Elias Derby, hired the Salem militia to dig the tunnels and hide the spoil.
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High frequency motions may explain the local spalling of rock or concrete along planes of weakness. These frequencies, which rapidly attenuate with distance, may be expected mainly at small distances from the causative
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Government funds are often required for the creation of tunnels. When a tunnel is being planned or constructed, economics and politics play a large factor in the decision making process. Civil engineers usually use
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Niu, Jiqiang; Zhou, Dan; Liu, Feng; Yuan, Yanping (1 October 2018). "Effect of train length on fluctuating aerodynamic pressure wave in tunnels and method for determining the amplitude of pressure wave on trains".
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on national road Rv 653 in Norway is the world's deepest subsea road tunnel, measuring 7.776 km (4.832 mi) long, with deepest point at −287 m (−942 ft) below the sea level, opened in February
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wavefront and vice versa). When two wavefronts of the same sign meet the train, significant and rapid air pressure may cause ear discomfort for passengers and crew. When a high-speed train exits a tunnel, a loud
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tunnel excavators developed a specialized method called clay-kicking for digging tunnels in clay-based soils. The clay-kicker lies on a plank at a 45-degree angle away from the working face and rather than a
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of digging tunnels in strong clay-based soil structures. This method of cut and cover construction required relatively little disturbance of property during the renewal of the United Kingdom's then ancient
2357:, which after 2700 years, still provides drinking and agricultural water to nearly 40,000 people. Its main well depth is more than 360 m (1,180 ft), and its length is 45 km (28 mi).
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When there is a parallel, separate tunnel available, airtight but unlocked emergency doors are usually provided which allow trapped personnel to escape from a smoke-filled tunnel to the parallel tube.
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in Liverpool, England, at 2.03 km (1.26 mi) long on a twin track railway, was the first rail tunnel bored under a metropolis. The tunnel's path is from Edge Hill in the east of the city to
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mountains was opened, permitting the establishment of the commercial mass transportation of passengers and freight over the Sierras for the first time. It remained in daily use until 1993, when the
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are water management systems used to provide a reliable supply of water to human settlements or for irrigation in hot, arid and semi-arid climates. The deepest known qanat is in the Iranian city of
885:), aesthetic reasons (preserving the above-ground view, landscape, and scenery), and also for weight capacity reasons (it may be more feasible to build a tunnel than a sufficiently strong bridge).
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tunnel boring machine, with a 17.5-metre (57.5 ft) cutterhead diameter. After several delays, tunnel boring was completed in April 2017, and the tunnel opened to traffic on 4 February 2019.
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A database of seismic damage to underground structures using 217 case histories shows the following general observations can be made regarding the seismic performance of underground structures:
2735:, England, was bored under a metropolis opening in 1848. The tunnel was initially used only for rail freight serving the Waterloo Freight terminal, and later freight and passengers serving the
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spoil removal is normally by excavator from within the box. Recent developments of the Jacked Arch and Jacked deck have enabled longer and larger structures to be installed to close accuracy.
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or utility tunnels carry two or more utility lines. Through co-location of different utilities in one tunnel, organizations are able to reduce the costs of building and maintaining utilities.
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Approach. The original two-track tunnel was removed to create a deep cutting. Some of the road bridges seen across the cutting are solid rock and in effect are a series of short tunnels.
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Siamak Hashemi, 2013, The Magnificence of Civilization in Depths of Ground (A Review of Underground Structures in Iran – Past to Present), Shadrang Printing and Publishing Co., Tehran.
1715: train) of the New York City Subway, was not opened for passenger service until 1989. The lower level, intended for commuter rail, saw passenger service after completion of the
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in South East Asia and second longest in Asia. The facility can be operated as a simultaneous traffic and stormwater passage, or dedicated exclusively to stormwater when necessary.
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being an ideal location for a serving station. If reused the tunnel will be the oldest used underground rail tunnel in the world and oldest section of any underground metro system.
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in 1944, killing 426 passengers. Designers try to reduce these risks by installing emergency ventilation systems or isolated emergency escape tunnels parallel to the main passage.
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Other reasons for choosing a tunnel instead of a bridge include avoiding difficulties with tides, weather, and shipping during construction (as in the 51.5-kilometre or 32.0-mile
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Schmidt, E.F., 1953, Persepolis I – Structures, Reliefs, Inscriptions; The University of Chicago Oriental Institute Publications, Volume LXVIII, The University of Chicago Press.
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to the river, in WW2 part of the tunnel was used as a shelter. Under the management of a charitable foundation called the Ouseburn Trust it is currently used for heritage tours.
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National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. NOAA National Centers for Environmental Information (1972).
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investigations and surveys, long sections of similar rock tunnels extending beneath the palace area were traced by Herzfeld and later by Schmidt and their archeological teams.
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to stabilize the tunnel, by allowing a measured relaxation and stress reassignment into the surrounding rock to prevent full loads becoming imposed on the supports. Based on
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For water crossings, a tunnel is generally more costly to construct than a bridge. However, both navigational and traffic considerations may limit the use of high bridges or
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in England, which opened in 1841, was the longest railway tunnel in the world at the time of construction. It was dug by hand, and has a length of 2.9 km (1.8 mi).
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network used to transport escaped slaves was "underground" mostly in the sense of secrecy, hidden tunnels were occasionally used. Secret tunnels were also used during the
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definition of a tunnel is "An underground structure with a design length greater than 23 m (75 ft) and a diameter greater than 1,800 millimetres (5.9 ft)."
2878:, in constructing the City & South London Railway tunnel beneath the Thames, opened in 1890, brought together three key elements of tunnel construction under water:
413:("cask"). The modern meaning, referring to an underground passageway, evolved in the 16th century as a metaphor for a narrow, confined space like the inside of a cask.
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are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment.
3010:, opened in 2016, is the longest and deepest railway tunnel in the world at 57.1 km (35.5 mi) length and 2,450 m (8,040 ft) maximum depth below the
755:
project replaced elevated roadways with a tunnel system to increase traffic capacity, hide traffic, reclaim land, redecorate, and reunite the city with the waterfront.
125:
is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two
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Owing to the enclosed space of a tunnel, fires can have very serious effects on users. The main dangers are gas and smoke production, with even low concentrations of
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1605:-level tunnel, also under the Bosporus. The tunnel is intended to carry both the Istanbul metro and a two-level highway, over a length of 6.5 km (4.0 mi).
3178:. The tunnel is 10.0 km (6.2 mi) long and at an elevation of 2,816 m (9,239 ft) is the highest active railroad tunnel in the U.S. (The inactive
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in England, completed in 2010. Looking west towards the station in March 2005, showing the extent of construction three months before a small section collapsed.
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1857:, and then leveling the surface with earth. In railway parlance, a surface-level track which has been built or covered over is normally called a "covered way".
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closed it and transferred all rail traffic through the 3,146-metre (10,322 ft) long Tunnel #41 (a.k.a. "The Big Hole") built a mile to the south in 1925.
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Reported damage decreases with increasing over burden depth. Deep tunnels seem to be safer and less vulnerable to earthquake shaking than are shallow tunnels.
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was completed between France and Italy, being the second-oldest Alpine tunnel, 13.7 km (8.5 mi) long. At that time it was the longest in the world.
2002:. Both types of tunnels often have provisions to increase ventilation under emergency conditions, such as a fire. Although there is a risk of increasing the
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commuter trains on the lower level. Construction started in 1969, and the two sides of the tunnel were bored through in 1972. The upper level, used by the
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is sometimes considered the longest tunnel, of any type, in the world at 154 km (96 mi), though the aqueduct's tunnel section is not continuous.
1758:, featuring a gallery containing five water mains lines with diameters between 1.2 and 1.5 m (4 and 5 ft) below the road section of the tunnel.
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5169:"Risks of Ear Complaints of Passengers and Drivers While Trains Are Passing Through Tunnels at High Speed: A Numerical Simulation and Experimental Study"
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Kim, Joon-Hyung; Rho, Joo-Hyun (1 March 2018). "Pressure wave characteristics of a high-speed train in a tunnel according to the operating conditions".
2520:. The tunnel is 2.9 kilometres (1.83 mi) long. Closed in 1962 the tunnel was reopened in 1973. The series of tunnels was extended in 1984 and 1989.
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until 2007. It was the oldest section of the network, although not the oldest purpose built rail section. From 2010 the tunnel became a part of the
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Duration of strong-motion shaking during earthquakes is of utmost importance because it may cause fatigue failure and therefore, large deformations.
1266:(NATM)—also referred to as the Sequential Excavation Method (SEM)—was developed in the 1960s. The main idea of this method is to use the geological
349:
These terms provide a foundation for understanding the technical aspects of tunneling projects. If you have a specific context in mind, let me know!
4044:
1182:, had a diameter of about 9 metres (30 ft). A larger TBM was built to bore the Green Heart Tunnel (Dutch: Tunnel Groene Hart) as part of the
5802:
1043:
Shallow tunnels are often of the cut-and-cover type (if under water, of the immersed-tube type), while deep tunnels are excavated, often using a
6091:
4908:
2059:
equipment is often used, and real-time pictures of traffic conditions for some highways may be viewable by the general public via the Internet.
6555:
5575:
4575:
961:
was not aware of this bill and had not asked for a grant for such a project. Increased taxes to finance a large project may cause opposition.
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2845:, between northern and southern Switzerland, opened in 1882 and was the longest rail tunnel in the world, measuring 15 km (9.3 mi).
616:
certain configurations of rock and clay will have the greatest stand-up time, while sand and fine soils will have a much lower stand-up time.
578:, the network of tunnels was used by Jewish strategists as rock-cut shelters, in first links to Judean resistance against Roman rule in the
7366:
2037:" may occur, which can disturb residents near the mouth of the tunnel, and it is exacerbated in mountain valleys where the sound can echo.
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was the longest land rail tunnel, with a length of 34.5 km (21.4 mi), from its inauguration in 2007 until the completion of the
8095:
5816:
3634:. The tunnel is thought actually to be the work of ice. The sun shines through the tunnel during two few minutes long periods every year.
2083:
Damage may be related to peak ground acceleration and velocity based on the magnitude and epicentral distance of the affected earthquake.
2396:
defensive importance, since it ran underground, and it was not easily found by an enemy who could otherwise cut off the water supply to
1976:
of 1982, the majority of fatalities were caused by toxic smoke, rather than by the initial crash. Likewise 84 people were killed in the
5383:
Klaus Grewe, 1998, Licht am Ende des Tunnels – Planung und Trassierung im antiken Tunnelbau, Verlag Philipp von Zabern, Mainz am Rhein.
5467:
5856:
3064:. It has a total length of 50 km (31 mi), of which 39 km (24 mi) are the world's longest undersea tunnel section.
2273:. This and a short section of the original tunnel nearer to Lime Street are the oldest rail tunnels in the world still in active use.
2072:
Underground facilities constructed in soils can be expected to suffer more damage compared to openings constructed in competent rock.
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4368:
375:
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rediscovered in 2013 and inspected. The tunnel was resealed to preserved the construction as it was designated an ancient monument.
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5671:
5443:
5003:
7411:
5487:
4922:
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3468:. Excavation techniques, as well as the construction of underground bunkers and other habitable areas, are often associated with
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streets. It operated between 1906 and 1956 as a freight network, connecting building basements and railway stations. Following a
6036:
4601:
3368:
is the world's highest railway tunnel, about 4.905 km (3.05 mi) above sea level and 1,338 m (0.831 mi) long.
1646:
was opened in 2016. Each level accommodates a full height, two by two-lane highway. The two lower tubes of the tunnel carry the
6394:
5262:
3956:
3665:(1925) – tunnel collapse on a work train during renovation, killing four men and trapping a steam locomotive and ten flat cars.
2852:, at 3.182 km (1.977 mi) long, was one of the first long road tunnels under a pass, running between France and Italy.
1654:
1219:
422:
6119:
5407:
5263:"A Case Study Boston Central Artery/Tunnel Integrated Project Control System, Responding to incidents Rapidly and Effectively"
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4706:
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1472:
1174:. The borehole has a diameter of 8.03 metres (26.3 ft). The four TBMs used for excavating the 57-kilometre (35 mi)
4851:
2762:, the first Alpine tunnel, was opened in 1848 and was 1.431 km (0.889 mi) long. It connected rail traffic between
5226:
Fridolf, K.; Ronchi, E.; Nilsson, D.; Frantzich, H. (2013). "Movement speed and exit choice in smoke-filled rail tunnels".
3207:
is the largest urban street tunnel network, comprising 97 km (60 mi) of tunnels beneath the majority of downtown
2896:
from Morden to East Finchley via Bank was the longest railway tunnel in the world at 27.8 km (17.3 mi) in length.
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construction in a compressed air environment to inhibit water flowing through soft ground material into the tunnel heading.
1650:, which originates in Amsterdam, through the city; and the two upper tubes take the N2 regional highway for local traffic.
1576:
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217:
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tunnel was completed, supplying water to New York City. At 137 km (85 mi) it is the longest tunnel in the world.
2587:. The locomotive made the historic journey from Penydarren to Abercynon in 1804. Part of this tunnel can still be seen at
5401:
UNESCO World Heritage Centre – World Heritage List: Qanats of Gonabad, Date of Inscription 2007, Reference No. 5207, At:
3566:
3254:) were bypassed in the 1960s; the latter two tunnels are on a bypassed section of the Turnpike now commonly known as the
2736:
2006:
through increased airflow, the primary focus is on providing breathable air to persons trapped in the tunnel, as well as
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1187:
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opened in 1843, was the first tunnel (after Terelek) traversing under a water body, and the first to be built using a
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1949:
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A major tunnel project must start with a comprehensive investigation of ground conditions by collecting samples from
5729:
4193:
3825:"New Technologies and Challenges in the Construction of the Immersed Tube Tunnel of the Hong Kong-Zhuhai-Macao Link"
1642:
In the Netherlands, a 2.3 km (1.4 mi) two-storey, eight-lane, cut-and-cover road tunnel under the city of
743:
Bridges usually require a larger footprint on each shore than tunnels. In areas with expensive real estate, such as
683:
109:
5984:
3408:, started in 1970, has an expected completion beyond 2026, and will measure more than 97 km long (60 mi).
3405:
2952:
is the longest undersea road tunnel. It is 14.3 km (8.9 mi) in length. The tunnel opened for use in 2020.
2599:. This is arguably the oldest railway tunnel in the world, dedicated only to self-propelled steam engines on rails.
1764:'s Yangtze River Highway and Railway Tunnel is a 2.59 km (1.61 mi) two-tube double-deck tunnel under the
1705:
1163:
1059:
underground cathedral, owing to the sheer size of the excavation. This contrasts with many traditional stations on
908:
297:: Structural materials used to support the tunnel walls, which can be made of concrete, steel, or other materials.
4520:"National Railway Museum / Science & Society image # 10445944: "Building a railway bridge in Liverpool, 1881""
4134:
United States Army Corps of Engineers. (1978). Tunnels and shafts in rock. Washington, DC: Department of the Army.
4401:
3300:
3277:. Both tunnels handle around 150,000 vehicles a day, making them two of the most trafficked tunnels in the world.
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2751:
network. Stations cut into the tunnel are being considered and also reuse by a monorail system from the proposed
2644:
1899:
1627:, China, a 2.8 km (1.7 mi) two-tube double-deck tunnel was built starting in 2002. In each tube of the
39:
4527:
4497:
2096:
may be amplified upon incidence with a tunnel if wavelengths are between one and four times the tunnel diameter.
1964:
of 2001 for example, all of the victims succumbing to smoke and gas inhalation. Over 400 passengers died in the
1598:, opened in 2016, has at its core a 5.4 km (3.4 mi) two-deck road tunnel with two lanes on each deck.
7997:
7860:
7855:
7840:
5778:"National Register of Historic Places Inventory-Nomination: St. Clair River Tunnel / St. Clair Railroad Tunnel"
5350:
2708:. Originally used as a foot-tunnel, the tunnel was converted to a railway tunnel in 1869 and was a part of the
2215:
1662:
1263:
1211:
779:, tunnels were chosen over bridges for strategic considerations; in the event of damage, bridges might prevent
679:
6010:
5371:
Hymon, Steve. "Designing A Subway to Withstand an Earthquake." The Source. N.p., 2017. Web. 11 November 2017.
1413:
During construction of a tunnel it is often convenient to install a temporary railway, particularly to remove
1018:
over with an overhead support system strong enough to carry the load of what is to be built above the tunnel.
129:
common at each end, though there may be access and ventilation openings at various points along the length. A
94:
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6492:
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4800:
4652:
4454:
4122:
Powers, P.J. (2007). Construction dewatering and groundwater control. Hoboken, NJ: John Wiley & Sons Inc.
3472:, or civilian responses to threat of attack. Another use for tunnels was for the storage of chemical weapons
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3102:
1785:
light rail. The middle level is used by car traffic, and the top layer is for bicycle and pedestrian access.
1234:
5534:
4344:
4314:
993:
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6220:
5754:
3942:
Brodziewska, J. (2005). Wildlife tunnels and fauna bridges in Poland: past, present and future, 1997-2013.
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3512:
3094:
is the world's longest road tunnel, intended for cars and similar vehicles, at 24.5 km (15.2 mi).
2621:
893:
5299:
4017:
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and its urban area with the coffee-growing region, and with the main port on the Colombian Pacific coast.
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by rail. It is 53.9-kilometre (33.5 mi) long, of which 23.3 km (14.5 mi) are crossing the
2724:
2681:
1425:
to allow the operation of empty and loaded trains at the same time. The temporary way is replaced by the
4667:"Istanbul's mega-project: World's first three-level tunnel to be built under the Bosporus – Daily Sabah"
4060:"Eupalinos Tunnel – First Tunnel to be excavated simultaneously from both ends in the 6th centurty B.C."
3905:
201:, are built to allow wildlife to cross human-made barriers safely. Tunnels can be connected together in
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7931:
7926:
7901:
7524:
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6427:
4905:"Black & Veatch uses trenchless technology for water main rehabilitation in Hong Kong – WaterWorld"
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3235:
2999:, opened in 2009, is the third longest water tunnel in the world at 85.3 km (53.0 mi) length.
2277:
1999:
1888:
1186:
in the Netherlands, with a diameter of 14.87 metres (48.8 ft). This in turn was superseded by the
839:
591:
1480:
work progressed. There are other occurrences of tunnels being replaced by open cuts, for example, the
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7285:
6680:
3824:
3644:
3599:
3465:
3399:
3391:
3231:
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were built using the cut-and-cover method in the 1860s, and opened in January 1863. What are now the
2740:
2677:
near Darlington, England, is the oldest sizeable tunnel in the world still in use under a settlement.
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1969:
1926:
1647:
1468:
1402:
1243:
1215:
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953:
729:
721:
17:
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1977:
1389:
There are also several approaches to underwater tunnels, the two most common being bored tunnels or
262:
The terminology related to tunnels encompasses various concepts and terms. Here are some key terms:
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5962:
Author lifts lid on chemical wartime history – Local News – News – General – Blue Mountains Gazette
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3714:
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3196:, from 1804 and completed around 1840 by a wealthy eccentric, are probably the largest underground
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2816:
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2183:
1961:
1945:
1282:
938:
903:
There are particular hazards with tunnels, especially from vehicle fires when combustion gases can
867:
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631:
540:
around the 8th century BC. Another tunnel excavated from both ends, maybe the second known, is the
212:, although similar shorter excavations can be constructed, such as cross passages between tunnels.
4953:
3215:
the network was sealed, although some parts still carry utility and communications infrastructure.
2917:
2739:. The tunnel's path is from Edge Hill in the east of the city to the north end Liverpool docks at
2558:
is reputed to be the oldest rail tunnel in the world. The rail wagons were originally horse-drawn.
1657:, is a $ 3.3 billion 2.83-kilometre (1.76 mi), double-decker bored highway tunnel under
1405:
are a novel approach under consideration; however, no such tunnels have been constructed to date.
7787:
7576:
7201:
7176:
7116:
6796:
6737:
6213:
6063:"Day after India-Pakistan flag meet, BSF detects trans-border tunnel in Jammu's Arnia sub-sector"
5708:
5687:
5074:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
4519:
4489:
3428:
3189:
2962:
2767:
2701:
2561:
2474:
2211:
2204:
2146:
1768:
completed in 2018. Each tube carries three lanes of local traffic on the top deck with one track
1755:
1290:
1285:
is computed. The excavation is protected by a layer of sprayed concrete, commonly referred to as
815:
776:
675:
668:
557:
545:
31:
5625:
3372:
3319:
through the tunnels. The Big Dig replaced Boston's old badly deteriorated I-93 elevated highway.
874:
was constructed to provide a second harbour crossing and to alleviate traffic congestion on the
8012:
7464:
7275:
7089:
6925:
6900:
6751:
6730:
6622:
4171:
3708:
3668:
3554:
3204:
2992:
2603:
2532:
2470:
1965:
1876:
1666:
1152:
916:
859:
827:
357:
164:
4095:
2297:. On the right, hidden by undergrowth, is the disused original short 1829 Crown Street Tunnel.
1101:
lines, because it was almost silent and so not susceptible to listening methods of detection.
1039:
Excavation then takes place under the permanent tunnel roof, and the base slab is constructed.
7896:
7835:
7151:
6960:
6468:
6353:
5777:
4038:
3750:
3674:
3562:
3365:
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3312:
3296:
3219:
3146:
3011:
2048:
2025:
1973:
1696:
1533:
1492:
1464:
was replaced with a double-track tunnel, with the original tunnel used for growing mushrooms.
1452:
The vehicles or traffic using a tunnel can outgrow it, requiring replacement or enlargement:
1324:
1319:
rock consistency during the tunneling work. The measured rock properties lead to appropriate
1135:
1120:
1110:
875:
871:
863:
811:
784:
443:
243:
126:
5514:
3281:
2916:
was the first underwater tunnel designed for automobiles. The construction required a novel
2902:, also opened later in 1890, linked the elements of the Greathead tunnels on a larger scale.
2835:
1034:: Side support walls and capping beams are constructed from ground level by such methods as
1000:
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6514:
5464:
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3498:
3303:
completed around 2007, and carries approximately 200,000 vehicles/day under the city along
3251:
3239:
3158:
3076:
3003:
2842:
2824:
2697:
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2565:
1995:
1772:
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1312:
1175:
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942:
847:
494:
486:
474:
380:
5881:"NYC's Giant Water Tunnel Begins Work On Final Shafts, Following 50 Years Of Construction"
4229:"Analysis of mechanized tunneling parameters to determine the overcutting characteristics"
3958:
Highway Structures & Bridges Design CD 352, Design of road tunnels (formerly BD 78/99)
2643:
in the south end Liverpool docks. The tunnel was used only for freight terminating at the
2481:, dug through hills, which opened in 1789, was 3.5 km (2.2 mi) long and allowed
1238:
1886 illustration showing the ventilation and drainage system of the Mersey railway tunnel
8:
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7270:
6826:
6811:
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6744:
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6363:
3906:"Making the Subterranean Visible: Security, Tunnels, and the United States–Mexico Border"
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2034:
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469:
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4019:
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are emptied lava conduits, formed during volcanic eruptions by flowing and cooling lava.
2859:
tunnel opened in 1886, running from Liverpool to Birkenhead under the River Mersey. The
2301:
269:: An underground passage, often used for transportation (roads, railways) or utilities.
208:
A tunnel is relatively long and narrow; the length is often much greater than twice the
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7803:
7544:
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Mishra, V K; Aggarwal, M L; Berghmans, P; Frijns, E; Int Panis, L; Chacko, K M (2015).
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2003:
1930:
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excavation, the final use and the shape of the tunnel and appropriate risk management.
933:
636:
130:
5323:
4930:
3602:(Virginia, US) features an 260-metre (850 ft) natural tunnel, really a limestone
3460:
Some tunnels are not for transport at all but rather, are fortifications, for example
2265:
2246:
2080:
and rock-stabilizing measures may improve the safety and stability of shallow tunnels.
1394:
1296:
1162:
In February 2010, Aker Wirth delivered a TBM to Switzerland, for the expansion of the
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Hashash, Youssef M.A.; Hook, Jeffrey J.; Schmidt, Birger; Yao, John I-Chiang (2001).
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4083:
https://www.safeworkaustralia.gov.au/system/files/documents/1702/guide-tunnelling.pdf
3925:
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3222:
opened in 1940 with seven tunnels, most of which were bored as part of the stillborn
2924:
2805:
2759:
2717:
2705:
2629:
2527:
2132:
2052:
2017:
1984:
1941:
1808:. When necessary, floodwater is first diverted into a separate bypass tunnel located
1700:
1609:
1496:
1251:
1156:
1044:
843:
579:
498:
490:
198:
5373:
http://thesource.metro.net/2012/08/10/designing-a-subway-to-withstand-an-earthquake/
5273:
4245:
3288:
in Norway as the world's northernmost road tunnel, except for mines (which exist on
8080:
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7798:
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7762:
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4240:
4020:"KARSTIC FEATURES GENERATED FROM LARGE PALAEOVERTEBRATE TUNNELS IN SOUTHERN BRAZIL"
4018:
Frank, de Carvalho Buchmann, Gonçalves de Lima, Caron, Lopes & Fornari (2011).
3994:
3917:
3836:
3740:
3659:(1904) – train fire in Couronnes underground station, 84 killed by smoke and gases.
3493:
3488:
3274:
3247:
3141:
2899:
2808:, Hammersmith & City and Circle lines were the first to prove the success of a
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2709:
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1751:
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1723:
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considered higher than for a tunnel. Similar conclusions were reached for the 1971
759:
537:
6603:
5247:
4816:"Governor Rockefeller and Mayor Lindsay Attend 'Holing Through' of 63d St. Tunnel"
4698:
4633:– Yapı Merkezi, SK EC Joint Venture. Archived from the original on 20 January 2016
3973:
NFPA Standard for Safeguarding Construction, Alteration, and Demolition Operations
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75:
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1957:
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1300:
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835:
772:
624:
44:
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3109:
tunnel and the longest mountain road tunnel in Asia, at 18 km (11 mi).
2971:
The Gotthard Base Tunnel is the first flat route through a major mountain range.
1846:
Over-bridges can sometimes be built by covering a road or river or railway with
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which monitors and reports on traffic conditions, and responds to emergencies.
1591:
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1271:
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1081:
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889:
882:
799:
795:
396:
325:
Techniques used to manage water that may enter the tunnel during construction.
202:
178:
172:
160:
148:
83:
79:
56:
7371:
5940:
5042:
2099:
Damage at and near tunnel portals may be significant due to slope instability.
2066:
Underground structures suffer appreciably less damage than surface structures.
1155:
and go through decompression procedures at the end of their shifts, much like
997:
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7886:
7772:
7726:
7701:
7686:
7681:
7656:
7469:
7308:
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6905:
5803:"Nå er siste fjellrest sprengt vekk i verdens lengste undersjøiske veitunnel"
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4828:
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2893:
2892:
Built in sections between 1890 and 1939, the section of London Underground's
2868:
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2693:
2505:
2464:
2439:
The world's oldest tunnel traversing under a water body is claimed to be the
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2093:
1868:
1782:
1672:
1614:
1560:
1500:
1481:
1426:
1390:
1098:
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1070:
Prior to the replacement of manual excavation by the use of boring machines,
1051:
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791:
529:
168:
156:
134:
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6529:
6122:[The hobby photographer has waited three years for this rare shot].
3671:(1944) – asphyxiation of about 500 "unofficial" passengers on freight train.
3153:
1250:
Once construction is complete, construction access shafts are often used as
732:, serves as an example of a water-crossing tunnel built instead of a bridge.
7876:
7736:
7489:
7484:
7474:
7454:
7141:
7084:
6915:
6632:
6575:
6488:
6379:
6343:
6328:
5212:
5185:
5050:
4190:"Encouraging U.S. Infrastructure Investment – Council on Foreign Relations"
3745:
3584:
3443:
3327:
3323:
3262:
3226:
and giving the highway the nickname "Tunnel Highway". Four of the tunnels (
2640:
2509:
2416:
2401:
2397:
2380:
2376:
2014:
1805:
1789:
1727:
1422:
1418:
1373:
1343:
1336:
1316:
1278:
1207:
851:
763:
549:
290:: A vertical section through the tunnel, showing its shape and dimensions.
114:
99:
6541:
6476:
3423:
2364:
was built before 701 BC for a reliable supply of water, to withstand
1601:
Additionally, in 2015 the Turkish government announced that it will build
133:
differs significantly from a tunnel, though some recent tunnels have used
8054:
7946:
7891:
7808:
7691:
7499:
7196:
7079:
7018:
6587:
6307:
5733:
4671:
3792:
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3528:
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3113:
3072:
3007:
2820:
2460:
2306:
2029:
2007:
1988:
1769:
1747:
1575:
Some tunnels are double-deck, for example, the two major segments of the
1179:
1148:
1128:
1035:
912:
823:
619:
463:
352:
6638:
6563:
6464:
6092:"20-Foot Tunnel From Pakistan Found By BSF At Sambha, Jammu and Kashmir"
5167:
Xie, Pengpeng; Peng, Yong; Wang, Tiantian; Zhang, Honghao (April 2019).
3631:
1369:
431:
311:: A method of constructing tunnels by digging a trench and covering it.
232:
7323:
7303:
7191:
7003:
6998:
6920:
6910:
6791:
6536:
6456:
6368:
6348:
6272:
4755:"Unique stacked tunnel under Maastricht - Division Traffic & Infra"
4369:"Engineering Projects Will Transform Seattle, All Along the Waterfront"
3647:(1861) – confusion about block signals leading to collision, 23 killed.
3619:
3542:
3461:
3432:
3402:. Started in the mid-1970s, the project is due to be completed in 2029.
3019:
2967:
2748:
2667:
2648:
2588:
2576:
2555:
2498:
2493:
was constructed which carries the "Golden Valley" railway line between
2420:
2269:
A short section remains of the 1832 Edge Hill to Lime Street tunnel in
2218: in this section. Unsourced material may be challenged and removed.
1925:"Tunnel fire" redirects here. For the 1991 wildfire in California, see
1735:
1680:
1643:
888:
Some water crossings are a mixture of bridges and tunnels, such as the
803:
737:
575:
528:
The earliest tunnel known to have been excavated from both ends is the
514:
403:
384:
190:
137:
construction techniques rather than traditional tunnel boring methods.
87:
68:
5551:"Bourne's Tunnel at Sj5033491804 – Saint Helens – St Helens – England"
3986:
2452:
1441:
63:
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7716:
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7459:
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1864:
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1836:
1832:
1731:
1684:
1595:
1476:
1461:
1414:
1286:
767:
748:
744:
725:
533:
489:. The etymology of the terms "mining" (for mineral extraction or for
365:
182:
3711:(1999) – Transport truck caught on fire and combusted inside tunnel.
3384:
3326:, is a combined storm drainage and road structure opened in 2007 in
3087:
2288:
2193:
1936:
1524:
1516:
building pit is muted after tunnel construction; no roof is placed.
653:
318:: A device used to support the walls of a tunnel during excavation.
51:
7777:
7731:
7671:
7661:
7651:
7631:
7621:
7605:
7509:
7396:
7126:
7101:
7028:
6945:
6611:
6287:
6267:
6257:
5515:"Archaeologists find 'world's oldest railway tunnel' in Derbyshire"
4233:
Gornye Nauki I Tekhnologii = Mining Science and Technology (Russia)
3573:
3538:
3524:
3376:
3331:
3289:
3175:
3038:
2943:
2647:. Currently disused since 1972, the tunnel was to be a part of the
2611:
2313:
1914:
1793:
1624:
1398:
1199:
1183:
1086:
904:
897:
831:
597:
564:
518:
209:
6664:
6652:
4490:"National Railway Museum / Science & Society image # 10445941"
3627:
548:
1,036 m (3,400 ft) long running through Mount Kastro in
8038:
7956:
7676:
7641:
7449:
7421:
7106:
7033:
7023:
7013:
7008:
6716:
6688:
6358:
6205:
6200:
6120:"Hobbyfotografen har ventet tre år på dette sjeldne blinkskuddet"
5173:
International Journal of Environmental Research and Public Health
3823:
Zhou, Man; Su, Xiaolong; Chen, Yaying; An, Lin (2 October 2022).
3755:
3726:
3334:. The 9.7 km (6.0 mi) tunnel is the longest stormwater
3208:
3130:
3106:
3091:
2771:
2674:
2517:
2494:
2478:
2448:
2354:
2317:
A late 19th-century pneumatic rock-drilling machine, invented by
2044:
1898:
Underpass for cattle created in 1914 construction of what is now
1840:
1765:
1467:
The 1832 double-track 1.6-kilometre (1 mi)-long tunnel from
1076:
780:
752:
623:
pump the water out. A very effective but expensive technology is
369:
361:
144:
6599:
5531:
4098:. In Bickel, John O.; Kuesel, Thomas R.; King, Elwyn H. (eds.).
3576:
tunnels is unknown but theories connect it to a rebirth ritual.
3200:
in the world. The tunnels were built with no functional purpose.
1952:. There was no proper barrier and this contributed to her death.
1863:
are a kind of artificial tunnel built to protect a railway from
30:
This article is about underground passages. For other uses, see
7818:
7767:
7600:
7595:
7431:
7426:
7416:
7406:
7338:
7111:
7059:
6869:
6712:
6628:
6551:
6302:
6247:
3722:
3565:, mainly to allow terrorists access to the Indian territory of
3550:
3497:
Door to a compartment where runaway slaves would sleep, on the
3455:
3436:
3418:
3134:
3125:
3057:
3034:
2949:
2939:
2763:
2673:
The 1.1 km (0.68 mi) 1842 Prince of Wales Tunnel, in
2575:
A tunnel was created for the first true steam locomotive, from
2513:
2456:
2407:
One of the first known drainage and sewage networks in form of
2392:
2384:
2350:
2346:
1968:
in Italy in 1944, when the locomotive halted in a long tunnel.
1688:
1446:
1430:
1315:
the NATM method is flexible, even at surprising changes of the
1011:
1010:
is a simple method of construction for shallow tunnels where a
819:
553:
482:
194:
186:
103:
7533:
6452:
2946:. It was the longest railway tunnel in the world at that time.
2568:, were built in 1801 to smuggle imports affected by President
1800:" in the world, created to convey both traffic and occasional
346:
Systems designed to ensure air circulation within the tunnel.
7666:
6884:
6333:
6282:
6252:
5225:
5016:
3698:
3653:(1866) – train failed in tunnel, guard did not protect train.
3623:
3516:
3473:
3353:
3197:
3030:
2996:
2794:
2790:
2755:
redevelopment of Liverpool's Central Docks has been proposed.
2596:
2482:
2424:
2365:
2342:
1851:
1847:
1801:
1761:
1203:
1191:
920:
740:
intersecting with shipping channels, necessitating a tunnel.
522:
152:
6700:
6500:
6195:
2543:
canal tunnel is 2,819 m (1.8 mi) in length on the
2024:
entering a tunnel reflect at its open ends and change sign (
1827:
1579:(completed in 1936) are linked by a 160-metre (540 ft)
790:
Water-crossing tunnels built instead of bridges include the
159:
network are usually in the tunnel. Some tunnels are used as
7711:
7590:
6879:
6874:
6864:
6859:
6854:
6839:
6297:
6096:
5823:. 2 March 2008. Archived from the original on 17 March 2012
3603:
3507:
have given entrance to or escape from an area, such as the
3015:
2486:
2322:
1854:
1499:
was enlarged using a borrowed TBM so as to be able to take
1320:
1274:
1015:
510:
141:
5937:"Glenbrook Tunnel – Alcatraz Down Under – History Channel"
4730:"Maastricht's new highway tunnel: a role model for Europe"
3946:. Retrieved from https://escholarship.org/uc/item/4wd0j27j
2531:
railway was converted to steam locomotion in 1813 using a
2250:
Southern portal of the 1791 Dudley Canal tunnel in England
571:, hand-hewn in the Middle Ages, crosses a mountain ridge.
276:: The cylindrical cavity created when drilling a tunnel.
6262:
5019:"Dynamics of ultrafine particles inside a roadway tunnel"
4102:(2nd ed.). Kluwer Academic Publishers. p. 210.
2387:) was built in 520 BC by the ancient Greek engineer
1214:", a 17.5-metre (57.5 ft) diameter machine built by
1050:
Large cut-and-cover boxes are often used for underground
751:, this is a strong factor in favor of a tunnel. Boston's
7574:
6179:
Progress In Technology Revives Interest In Great Tunnels
5261:
Johnson, Christine M.; Edward L. Thomas (October 1999).
3626:
Hestmannen, the hill being the hat of the troll-king of
2261:'s watercolour of the Liverpool Edge Hill tunnel portals
585:
339:: The material that has been excavated from the tunnel.
5817:"Safety: World's Deepest Subsea Tunnel Opens in Norway"
5353:. NOAA National Centers for Environmental Information.
5300:"Seismic design and analysis of underground structures"
5260:
3022:, at a maximum elevation of 549 m (1,801 ft).
2819:
506-metre (1,659 ft) Summit Tunnel (Tunnel #6) at
2785:
Mounts opened in 1854, linking the capital city of the
1555:
1210:. As of August 2013, the world's largest TBM was "
1021:
There are two basic forms of cut-and-cover tunnelling:
919:, was caused by a train stalling in the Armi tunnel in
481:
Much of the early technology of tunneling evolved from
113:
Southern portal of the 421 m long (1,381 ft)
6037:"Where 'Criminal Underworld' Is More Than a Euphemism"
5578:. The Liverpool Wiki. 22 February 1999. Archived from
3284:(4.443 km (2.76 mi) long) opened in 1999 on
2321:
and used to drill the first large tunnels through the
1206:. All of these machines were built at least partly by
1047:. For intermediate levels, both methods are possible.
926:
915:
in 2001. One of the worst railway disasters ever, the
473:
Joralemon Street Tunnel on 1913 postcard, part of the
332:: The process of removing earth to create the tunnel.
7522:
6166:
Railway Tunnels in Queensland by Brian Webber, 1997,
5476:
5297:
4402:"Understanding the New Austrian Tunnel Method (NATM)"
3993:(3 ed.), Oxford University Press, 2 March 2023,
3606:, that has been used as a railroad tunnel since 1890.
3105:
opened in January 2007 is the world's second longest
181:
are built for military purposes, or by civilians for
5465:
Map of Dudley Canals | Discover Black Country Canals
4208:
3894:. Delhi, India : White Word Publications, 2012.
3789:– tunnel-like effect from tree canopies above a road
2309:
Summit Tunnel (#6) was in service from 1868 to 1993.
1781:
has three levels. The bottom level is to be used by
556:. It was built in the 6th century BC to serve as an
5482:
3783:– measure of maximum physical clearance in a tunnel
3677:(1982) – major motor vehicle tunnel crash and fire.
1528:
Tunnel excavated with drilling and blasting method.
1506:
Tunnels can also be enlarged by lowering the floor.
643:
5879:
5404:"Qanats of Gonabad – UNESCO World Heritage Centre"
4850:
4814:
4469:
4461:
4367:
4130:
4128:
2797:. The tunnel was 3.25 km (2.02 mi) long.
2554:The 1796 Stoddart Tunnel in Chapel-en-le-Frith in
1960:being highly toxic. Fires killed 11 people in the
504:
304:: A specialized machine used to excavate tunnels.
5599:
5597:
4785:"To Break Ground For 63rd St., East River Tunnel"
3116:in France, over 7.12 km (4.42 mi) long.
2930:In 1988 the 53.850 km (33.461 mi) long
1909:is a road or railway or other passageway passing
462:Some of the earliest tunnels used by humans were
8072:
6150:Ellis' British Railway Engineering Encyclopaedia
5857:"Costain finishes Gerrards Cross tunnel rebuild"
5488:"Fritchley Tunnel, Butterley Gangroad (1422984)"
5166:
3018:between the North and South of Europe under the
1887:"Underpass" redirects here. For other uses, see
6201:Tunnels & Tunnelling International magazine
5771:
5769:
4429:"Mushrooms and Tours | Li-Sun Exotic Mushrooms"
4420:
4125:
3242:) remain in active use, while the other three (
6196:ITA-AITES International Tunnelling Association
5594:
5114:
4396:
4394:
4392:
1257:
1143:the confines of the tunnel being constructed.
7560:
6395:
6221:
5270:Metropolitan Transportation Management Center
4471:"Mittagong mushroom business will close down"
4435:. Archived from the original on 16 March 2018
3394:is a network of 175 km (109 mi) of
3322:The Stormwater Management And Road Tunnel or
2905:In 1906 the fourth Alpine tunnel opened, the
1788:Some tunnels have more than one purpose. The
1519:
1119:A workman is dwarfed by the cutting end of a
6409:
6083:
5985:"Drug Tunnels Have Feds Digging for Answers"
5766:
4852:"The 'Subway to Nowhere' Now Goes Somewhere"
4359:
4043:: CS1 maint: multiple names: authors list (
3822:
3588:View through a natural tunnel in South Korea
3531:and elsewhere, to smuggle refugees, and for
2834:In 1870, after fourteen years of works, the
6054:
5645:
5507:
5304:Tunnelling and Underground Space Technology
5118:Tunnelling and Underground Space Technology
5004:"Drive through these 10 tremendous tunnels"
4550:"UK's biggest TBM rebores Farnworth Tunnel"
4389:
2864:underwater tunnel in world in January 1886.
2526:, constructed in 1793 in Derbyshire by the
1754:, carries a motorway but also serves as an
1254:, and may also be used as emergency exits.
682:. Unsourced material may be challenged and
501:" reveals these deep historic connections.
7567:
7553:
6402:
6388:
6228:
6214:
6008:
6002:
4172:"$ 100 Million for a Tunnel. What Tunnel?"
4057:
3864:Water Storage, Transport, and Distribution
3795:– tunnel bored through the trunk of a tree
2043:Larger, heavily used tunnels, such as the
6185:, 24 June 1986. Retrieved 15 August 2010.
6090:Iqbal, Sheikh Zaffar (14 February 2017).
5877:
5202:
5184:
4244:
4226:
4093:
3903:
3861:
3717:(2006) – Concrete ceiling panel falls in
3541:use secret tunnels to transport or store
2583:. The Penydarren locomotive was built by
2234:Learn how and when to remove this message
2165:Learn how and when to remove this message
1661:. Construction began in July 2013 using "
1429:at completion, thus explaining the term "
1303:utility tunnel, Port Kembla. One of many
959:Port Authority of New York and New Jersey
702:Learn how and when to remove this message
4576:"Report on Redeveloping Railway Tunnels"
4307:"Tunnels & Tunnelling International"
3583:
3492:
3442:The use of tunnels for mining is called
3422:
3152:
3140:
3124:
2966:
2332:Small operational brick tunnel in France
2327:
2312:
2300:
2287:
2276:
2264:
2253:
2245:
1944:tunnel, the site where the car carrying
1935:
1929:. For the 2022 wildfire in Arizona, see
1893:
1826:
1559:
1523:
1440:
1368:
1295:
1233:
1114:
987:
715:
468:
374:
351:
108:
93:
74:
62:
50:
38:
6117:
5978:
5976:
5023:Environmental Monitoring and Assessment
4365:
3975:. National Fire Protection Association.
2800:The oldest underground sections of the
2685:Originally designed to carry coal from
2051:, may have a dedicated 24-hour staffed
1550:
167:to supply water for consumption or for
14:
8073:
5755:Engineering Timelines – Mersey Railway
5648:Merseyrail electrics: the inside story
5071:
5010:
4923:"新闻分析:这条隧道藏了多少科技秘密——揭秘"万里长江公铁第一隧"-新华网"
4467:
1983:Motor vehicle tunnels usually require
1920:
1822:
1655:Alaskan Way Viaduct replacement tunnel
1564:The upper-level traffic lanes through
1220:Alaskan Way Viaduct replacement tunnel
1131:), the world's longest railway tunnel.
423:History of water supply and sanitation
140:A tunnel may be for foot or vehicular
7548:
6383:
6209:
6147:
6089:
6034:
6028:
6011:"Thieves Drill Into Paris Bank Vault"
5775:
5639:
4848:
4727:
4679:from the original on 19 February 2017
4524:Science & Society Picture Library
4494:Science & Society Picture Library
4214:
3961:. The Department for Transport. 2020.
1798:Stormwater Management And Road Tunnel
1746:, built in the mid 1960s, connecting
1364:
1089:systems. It was also used during the
586:Geotechnical investigation and design
67:Decorated portal to a road tunnel in
6118:Warholm, Harald (10 November 2014).
6060:
5982:
5973:
5532:Friends of the Cromford Canal – HOME
5351:"Significant Earthquake Information"
4849:Lorch, Donatella (29 October 1989).
4699:"Shanghai to Dig Double-deck Tunnel"
4169:
3829:Structural Engineering International
3157:The eastern portal of the abandoned
2216:adding citations to reliable sources
2187:
2115:
1972:was the main cause of death. In the
1879:, protects the line from rockfalls.
1556:Double-deck and multipurpose tunnels
1510:
878:, without spoiling the iconic view.
680:adding citations to reliable sources
647:
509:Predecessors of modern tunnels were
426:
283:: The entrance or exit of a tunnel.
227:
27:Underground passage made for traffic
5878:Kensinger, Nathan (22 April 2021).
5576:"Liverpool's Historic Rail Tunnels"
3513:smuggling tunnels in the Gaza Strip
3398:designed to reduce flooding in the
3170:, opened in 1928, passes under the
1994:Rail tunnels usually require fewer
1665:", at the time the world's largest
1095:Royal Engineer tunnelling companies
927:Project planning and cost estimates
24:
8096:Transport buildings and structures
7952:Naples underground geothermal zone
7136:
6235:
6152:(3rd Revised ed.). Lulu.com.
5493:National Heritage List for England
5446:from the original on 27 March 2016
5410:from the original on 29 March 2016
4951:
4616:
4594:"San Francisco-Oakland Bay Bridge"
4281:The Tunneller's Memorial, Givenchy
4227:Konyukhov, D. S. (12 April 2022).
3904:Sorrensen, Cynthia (1 July 2014).
3638:
3579:
3470:military use during armed conflict
3295:The Central Artery road tunnel in
3172:Continental Divide of the Americas
2884:permanent cast iron tunnel lining;
1913:another road or railway, under an
1104:
25:
8112:
6420:Offshore geotechnical engineering
6189:
6009:Colchester, Max (31 March 2010).
5776:Lange, Robie S. (February 1993).
4911:from the original on 5 June 2017.
4728:Kalus, Ruben (22 December 2016).
4600:. 4 November 2015. Archived from
4530:from the original on 4 March 2016
4500:from the original on 4 March 2016
4408:. Benjamin Media. 5 December 2018
4366:Johnson, Kirk (5 December 2012).
3478:
2934:in Japan was completed under the
2447:, a little south of the towns of
1987:and powered fans to remove toxic
1917:. This is not strictly a tunnel.
466:excavated by prehistoric mammals.
395:The word "tunnel" comes from the
7532:
6711:
6699:
6687:
6675:
6663:
6651:
6637:
6627:
6610:
6598:
6586:
6574:
6562:
6550:
6528:
6499:
6487:
6475:
6463:
6451:
5983:Audi, Tamara (31 January 2013).
4761:. 17 August 2015. Archived from
4709:from the original on 15 May 2006
4433:www.li-sunexoticmushrooms.com.au
3922:10.1111/j.1931-0846.2014.12029.x
3406:New York City Water Tunnel No. 3
3112:The longest canal tunnel is the
2723:The 3.34 km (2.08 mi)
2192:
2120:
1577:San Francisco–Oakland Bay Bridge
1570:San Francisco–Oakland Bay Bridge
1491:in England was enlarged using a
1408:
983:
862:, Zeeland, Netherlands; and the
652:
644:Choice of tunnels versus bridges
608:Other key geotechnical factors:
430:
402:, meaning "a net," derived from
231:
6141:
6111:
6035:Evans, Peter (3 October 2014).
5955:
5929:
5903:
5871:
5849:
5809:
5795:
5748:
5722:
5701:
5680:
5662:
5618:
5605:"Subterranea Britannica: Sites"
5568:
5543:
5525:
5458:
5440:"TERELEK KAYA TÜNELİ – terelek"
5431:
5422:
5395:
5386:
5377:
5365:
5342:
5291:
5254:
5219:
5160:
5108:
5065:
4996:
4971:
4945:
4915:
4897:
4871:
4842:
4823:. 11 October 1972. p. 47.
4807:
4777:
4747:
4721:
4691:
4659:
4586:
4568:
4542:
4512:
4482:
4426:
4329:
4299:
4269:
4246:10.17073/2500-0632-2022-1-49-56
4220:
4182:
4163:
4137:
4116:
4087:
4076:
4051:
3449:
3383:pressure. The tunnel will link
3256:Abandoned Pennsylvania Turnpike
2431:through a tunnel which emperor
2203:needs additional citations for
1900:Historic Columbia River Highway
1813:diverted through both tunnels.
1546:Wall-cover construction method.
1330:
964:
525:are known from before 2000 BC.
505:Antiquity and early middle ages
7998:Forestiere Underground Gardens
7861:Underground mining (soft rock)
7856:Underground mining (hard rock)
7841:Subsurface utility engineering
4954:"揭秘武汉长江公铁第一隧"尖板眼" 68个通道可供江底逃生"
4170:Chan, Sewell (3 August 2005).
4058:gzichnalis (15 January 2022).
4011:
3979:
3965:
3949:
3936:
3897:
3884:
3855:
3816:
3205:Chicago freight tunnel network
2489:and other goods. Above it the
1695:trains on the upper level and
1436:
1355:
1264:New Austrian Tunnelling method
992:Cut-and-cover construction at
223:
13:
1:
7070:Mechanically stabilized earth
5939:. Youtube.com. Archived from
5324:10.1016/S0886-7798(01)00051-7
5248:10.1016/j.firesaf.2013.03.007
4801:Old Fulton New York Postcards
4791:. 20 November 1969. p. 8
4554:Railway Gazette International
3944:UC Davis: Road Ecology Center
3841:10.1080/10168664.2021.1904487
3810:
3630:trying to save the beautiful
3350:Gerrards Cross railway tunnel
3161:, Pennsylvania, U.S., in 2009
2841:The third Alpine tunnel, the
2737:Liverpool ship liner terminal
2459:, just downstream from where
2177:
7851:Underground mine ventilation
6822:Hydraulic conductivity tests
4979:"武汉长江公铁隧道工程打造全球"超级工程"样板-新华网"
4703:China Facts and Figures 2002
4468:Biscoe, Emma (15 May 2014).
3892:Tunnels in Civil Engineering
3776:Sequential Excavation Method
3037:with the northern island of
3033:connects the main island of
2881:shield method of excavation;
1950:hit a Fiat and then the wall
1882:
1164:Linth–Limmern Power Stations
894:Chesapeake Bay Bridge-Tunnel
390:
155:. The central portions of a
7:
8008:Underground House Las Vegas
7383:Stress distribution in soil
4100:Tunnel Engineering Handbook
3733:
3663:Church Hill Tunnel collapse
3392:Chicago Deep Tunnel Project
3364:, completed in 2005 on the
3224:South Pennsylvania Railroad
2661:Lime Street railway station
2654:King's Dock Liverpool Arena
2140:. The specific problem is:
2111:
1796:is the first multipurpose "
1258:Sprayed concrete techniques
582:during the 2nd century AD.
513:that transported water for
302:TBM (Tunnel Boring Machine)
197:. Special tunnels, such as
10:
8117:
8003:Underground House Colorado
7932:Underground City, Montreal
7927:Underground City (Beijing)
6533:Pore pressure measurement
5821:www.tunnelintelligence.com
5138:10.1016/j.tust.2018.07.031
4147:. Cord.edu. Archived from
3862:Takahashi, Yutaka (2009).
3799:Tunnels in popular culture
3482:
3453:
3416:
3299:, is a part of the larger
3120:
3103:People's Republic of China
2960:
2956:
2817:Central Pacific Railroad's
2628:, England, 1829. Built by
2181:
1991:during routine operation.
1924:
1889:Underpass (disambiguation)
1886:
1683:, between the boroughs of
1520:Other construction methods
1403:Submerged floating tunnels
1382:
1334:
1108:
968:
907:users, as happened at the
814:between Manhattan and the
592:Geotechnical investigation
589:
420:
416:
82:for heating pipes between
29:
8047:
8034:Hockerton Housing Project
8021:
7985:
7869:
7817:
7755:
7614:
7583:
7575:Man-made and man-related
7440:
7395:
7294:
7286:Preconsolidation pressure
7258:
7249:
7222:
7042:
6991:
6978:
6893:
6847:
6838:
6761:
6681:Standard penetration test
6439:
6426:
6417:
6321:
6243:
6061:Khajuria, Ravi Krishnan.
5911:"City Water Tunnel No. 3"
5841:: CS1 maint: unfit URL (
5043:10.1007/s10661-015-4948-x
4651:: CS1 maint: unfit URL (
4453:: CS1 maint: unfit URL (
4192:. Cfr.org. Archived from
4094:Sutcliffe, Harry (2004).
3991:Oxford English Dictionary
3685:Heavy Good Vehicles (HGV)
3645:Clayton Tunnel rail crash
3600:Natural Tunnel State Park
3466:Cheyenne Mountain Complex
3427:Tunnel formerly used for
3412:
2938:, linking the islands of
2829:Southern Pacific Railroad
2758:The summit tunnel of the
2682:Victoria Tunnel Newcastle
2400:, the ancient capital of
1970:Carbon monoxide poisoning
1927:Oakland firestorm of 1991
1456:The original single line
1281:measurements, an optimal
1229:
1216:Hitachi Zosen Corporation
1056:Canary Wharf tube station
8101:Earthworks (engineering)
8048:Earth shelters Australia
7828:underground construction
6782:California bearing ratio
6580:Rotary-pressure sounding
6411:Geotechnical engineering
5650:. Sheffield: NBC Books.
5555:British Listed Buildings
5086:10.1177/0954409717702015
4952:汉网 (27 September 2018).
4789:New York Leader-Observer
4624:"Eurasia Tunnel Project"
4406:Tunnel Business Magazine
4337:"The Groene Hart Tunnel"
4145:"Capital Projects Funds"
4096:"Tunnel Boring Machines"
3729:to be closed for a year.
3715:Big Dig Ceiling collapse
3683:(1996) – Train carrying
3651:Welwyn Tunnel rail crash
2850:Col de Tende Road Tunnel
2645:Park Lane goods terminal
2184:History of rapid transit
1998:, but still may require
1946:Diana, Princess of Wales
1691:, was intended to carry
939:work breakdown structure
868:Pittsburgh, Pennsylvania
360:in the northern part of
7788:Missile launch facility
7202:Geosynthetic clay liner
7177:Expanded clay aggregate
6797:Proctor compaction test
6738:Crosshole sonic logging
6724:Nuclear densometer test
6481:Geo-electrical sounding
6041:The Wall Street Journal
6015:The Wall Street Journal
5989:The Wall Street Journal
5730:"Mersey Railway Tunnel"
5537:23 October 2016 at the
4598:Bay Area Toll Authority
3265:was opened in 1966, in
3133:road vehicle tunnel in
2963:List of longest tunnels
2768:Austro-Hungarian Empire
2702:Isambard Kingdom Brunel
2475:Thames and Severn Canal
2305:The 1,659-foot (506 m)
1875:"steel tunnel," on the
1867:of snow. Similarly the
1719:project, in late 2022.
1305:bunkers south of Sydney
777:Hampton Roads, Virginia
32:Tunnel (disambiguation)
8013:Underground World Home
7465:Earthquake engineering
7276:Lateral earth pressure
6901:Hydraulic conductivity
6752:Wave equation analysis
6731:Exploration geophysics
6623:Deformation monitoring
6592:Rotary weight sounding
6148:Ellis, Iain W (2015).
5967:9 January 2009 at the
5186:10.3390/ijerph16071283
4580:www.tunnel-online.info
4283:. 2009. Archived from
3999:10.1093/oed/1137765320
3709:Mont Blanc Tunnel fire
3693:(1997) – Car crash in
3691:Princess Diana's death
3669:Balvano train disaster
3657:Paris Métro train fire
3589:
3555:Border Security Forces
3501:
3439:
3162:
3150:
3138:
3069:Lötschberg Base Tunnel
2993:Dahuofang Water Tunnel
2972:
2604:Montgomery Bell Tunnel
2541:Butterley canal tunnel
2533:Steam Horse locomotive
2471:Sapperton Canal Tunnel
2333:
2325:
2310:
2298:
2285:
2274:
2262:
2251:
2000:forced-air ventilation
1978:Paris Métro train fire
1966:Balvano train disaster
1953:
1902:
1877:Illawarra railway line
1843:
1667:earth pressure balance
1572:
1529:
1449:
1380:
1308:
1239:
1136:Tunnel boring machines
1132:
1097:placing mines beneath
1004:
917:Balvano train disaster
890:Denmark to Sweden link
860:Western Scheldt Tunnel
828:Detroit-Windsor Tunnel
733:
478:
387:
372:
240:This section is empty.
118:
106:
91:
72:
60:
48:
7902:Kőbánya cellar system
7897:Houston tunnel system
7836:Rock-cut architecture
6643:Settlement recordings
6568:Rock control drilling
6469:Cone penetration test
5782:National Park Service
5760:22 March 2012 at the
3751:Counter-beam lighting
3675:Caldecott Tunnel fire
3587:
3563:India-Pakistan border
3496:
3426:
3366:Qinghai-Tibet railway
3313:Massachusetts Route 3
3297:Boston, Massachusetts
3263:Fredhälls road tunnel
3220:Pennsylvania Turnpike
3156:
3147:Gerrards Cross tunnel
3144:
3128:
2970:
2815:On 18 June 1868, the
2491:Sapperton Long Tunnel
2331:
2316:
2304:
2291:
2282:Liverpool Lime Street
2280:
2268:
2257:
2249:
2049:Boston, Massachusetts
2028:wavefront changes to
1974:Caldecott Tunnel fire
1939:
1897:
1830:
1697:Long Island Rail Road
1563:
1543:Slurry-shield machine
1534:Drilling and blasting
1527:
1493:tunnel boring machine
1444:
1372:
1299:
1237:
1153:work in high pressure
1123:used to excavate the
1121:tunnel boring machine
1118:
1111:Tunnel boring machine
991:
876:Sydney Harbour Bridge
872:Sydney Harbour Tunnel
864:North Shore Connector
812:Queens-Midtown Tunnel
785:Naval Station Norfolk
783:vessels from leaving
775:under the Mersey. In
728:, USA, which carries
719:
632:cross-sectional shape
472:
378:
355:
112:
97:
78:
66:
54:
42:
7977:Subterranean fiction
7972:Subterranean warfare
7505:Agricultural science
7207:Cellular confinement
5674:4 March 2016 at the
5646:Maund, T.B. (2001).
5470:9 April 2015 at the
5272:: 12. Archived from
4675:. 27 February 2015.
4347:on 25 September 2009
3870:. pp. 318–319.
3572:The actual usage of
3521:Underground Railroad
3515:which connect it to
3499:Underground Railroad
3271:New Elbe road tunnel
3190:Williamson's tunnels
3159:Sideling Hill Tunnel
3077:Gotthard Base Tunnel
3004:Gotthard Base Tunnel
2843:Gotthard Rail Tunnel
2698:Marc Isambard Brunel
2622:Crown Street station
2566:Salem, Massachusetts
2463:joins its tributary
2212:improve this article
2147:improve this section
2136:to meet Knowledge's
1996:air changes per hour
1962:Gotthard tunnel fire
1940:The entrance to the
1817:Common utility ducts
1722:In the UK, the 1934
1701:IND 63rd Street Line
1551:Variant tunnel types
1445:A utility tunnel in
1176:Gotthard Base Tunnel
1125:Gotthard Base Tunnel
943:critical path method
909:Gotthard Road Tunnel
848:Portsmouth, Virginia
676:improve this section
544:, which is a tunnel
495:military engineering
487:military engineering
475:New York City Subway
381:Moulvibazar District
323:Groundwater Control:
86:and Amagerværket in
7967:Subterranean Toledo
7962:Subterranean London
7882:Caves of Maastricht
7846:Tunnel construction
7627:Burial vault (tomb)
7397:Numerical analysis
7281:Overburden pressure
7271:Pore water pressure
7051:Shoring structures
6926:Reynolds' dilatancy
6827:Water content tests
6812:Triaxial shear test
6772:Soil classification
6745:Pile integrity test
5316:2001TUSTI..16..247H
5240:2013FirSJ..59....8F
5228:Fire Safety Journal
5130:2018TUSTI..80..277N
5035:2015EMnAs.187..756M
4705:. 1 November 2002.
4151:on 17 December 2011
3910:Geographical Review
3725:, which causes the
3681:Channel Tunnel fire
3357:after the collapse.
3236:Kittatinny Mountain
3180:Tennessee Pass Line
3099:Zhongnanshan Tunnel
2787:Kingdom of Sardinia
2506:Dudley canal tunnel
2441:Terelek kaya tüneli
2373:Eupalinian aqueduct
2142:just a random list.
1921:Safety and security
1823:Covered passageways
1775:on the lower deck.
1495:(TBM) in 2015. The
1270:of the surrounding
1242:A temporary access
1224:Seattle, Washington
1188:Madrid M30 ringroad
1140:compulsory purchase
971:Tunnel construction
569:Siqurto foot tunnel
542:Tunnel of Eupalinos
379:A fabric tunnel in
356:An entrance of the
7922:Underground living
7804:Underground hangar
7372:Slab stabilisation
7352:Stability analysis
6177:Sullivan, Walter.
5805:. 26 October 2017.
4879:"East Side Access"
4857:The New York Times
4821:The New York Times
4604:on 7 November 2016
4375:The New York Times
4311:Tunnelsonline.info
4176:The New York Times
3868:EOLSS Publications
3804:Underground living
3590:
3502:
3440:
3362:Fenghuoshan tunnel
3286:European route E69
3282:Honningsvåg Tunnel
3273:opened in 1975 in
3232:Tuscarora Mountain
3228:Allegheny Mountain
3163:
3151:
3139:
3016:flat transit route
2982:North West England
2978:Thirlmere Aqueduct
2973:
2918:ventilation system
2836:Fréjus Rail Tunnel
2823:in the California
2802:London Underground
2714:London Underground
2585:Richard Trevithick
2549:Ripley, Derbyshire
2334:
2326:
2319:Germain Sommeiller
2311:
2299:
2286:
2275:
2263:
2259:Thomas Talbot Bury
2252:
2057:Video surveillance
2004:rate of combustion
1985:ventilation shafts
1954:
1931:Tunnel Fire (2022)
1903:
1844:
1779:Mount Baker Tunnel
1677:63rd Street Tunnel
1629:Fuxing Road Tunnel
1585:Yerba Buena Island
1581:double-deck tunnel
1573:
1566:Yerba Buena Island
1539:Hydraulic splitter
1530:
1450:
1421:so that it can be
1381:
1365:Underwater tunnels
1309:
1252:ventilation shafts
1240:
1133:
1061:London Underground
1054:stations, such as
1005:
954:costs and benefits
934:project management
734:
479:
442:. You can help by
409:, a diminutive of
388:
373:
199:wildlife crossings
151:traffic, or for a
119:
115:Chirk canal tunnel
107:
92:
73:
61:
49:
8091:Civil engineering
8068:
8067:
8022:Earth shelters UK
7993:Bill Gates' house
7986:Earth shelters US
7756:Military features
7747:Ventilation shaft
7615:Civilian features
7520:
7519:
7391:
7390:
7367:Sliding criterion
7329:Response spectrum
7245:
7244:
7075:Pressure grouting
6974:
6973:
6834:
6833:
6787:Direct shear test
6493:Permeability test
6377:
6376:
6339:Civil engineering
6159:978-1-326-01063-8
5709:"Waterloo Tunnel"
5688:"Victoria Tunnel"
5669:Liverpool Lime St
4927:www.xinhuanet.com
4765:on 17 August 2015
4476:Illawarra Mercury
4287:on 23 August 2010
4109:978-1-4613-8053-5
3890:Salazar, Waneta.
3567:Jammu and Kashmir
3267:Stockholm, Sweden
3182:and the historic
2925:Delaware Aqueduct
2812:or subway system.
2779:Giovi Rail Tunnel
2766:, the capital of
2760:Semmering railway
2718:London Overground
2706:tunnelling shield
2630:George Stephenson
2610:Bourne's Tunnel,
2528:Butterley Company
2423:, penetrated the
2375:on the island of
2244:
2243:
2236:
2175:
2174:
2167:
2138:quality standards
2129:This section may
2053:operations center
2022:high speed trains
1831:The 19th century
1610:A86 Duplex Tunnel
1511:Open building pit
1497:Rhyndaston Tunnel
1166:located south of
1045:tunnelling shield
1014:is excavated and
806:and Manhattan in
712:
711:
704:
580:Bar Kokhba revolt
499:civil engineering
460:
459:
358:Rantaväylä Tunnel
260:
259:
16:(Redirected from
8108:
8029:Underhill, Holme
7937:Mine exploration
7799:Underground base
7794:Scallywag bunker
7763:Air raid shelter
7742:Smuggling tunnel
7707:Underground city
7647:Dugout (shelter)
7584:Natural features
7569:
7562:
7555:
7546:
7545:
7537:
7536:
7528:
7379:Bearing capacity
7266:Effective stress
7256:
7255:
7157:Land reclamation
7097:Land development
6992:Natural features
6989:
6988:
6956:Specific storage
6845:
6844:
6777:Atterberg limits
6715:
6703:
6691:
6679:
6667:
6655:
6641:
6631:
6616:Screw plate test
6614:
6602:
6590:
6578:
6566:
6554:
6532:
6503:
6491:
6479:
6467:
6455:
6437:
6436:
6404:
6397:
6390:
6381:
6380:
6230:
6223:
6216:
6207:
6206:
6163:
6136:
6135:
6133:
6131:
6115:
6109:
6108:
6106:
6104:
6087:
6081:
6080:
6078:
6076:
6071:. 1 October 2017
6058:
6052:
6051:
6049:
6047:
6032:
6026:
6025:
6023:
6021:
6006:
6000:
5999:
5997:
5995:
5980:
5971:
5959:
5953:
5952:
5950:
5948:
5933:
5927:
5926:
5924:
5922:
5913:. Archived from
5907:
5901:
5900:
5894:
5892:
5883:
5875:
5869:
5868:
5866:
5864:
5853:
5847:
5846:
5840:
5832:
5830:
5828:
5813:
5807:
5806:
5799:
5793:
5792:
5790:
5788:
5773:
5764:
5752:
5746:
5745:
5743:
5741:
5732:. Archived from
5726:
5720:
5719:
5717:
5715:
5705:
5699:
5698:
5696:
5694:
5684:
5678:
5666:
5660:
5659:
5643:
5637:
5636:
5634:
5632:
5626:"Wapping Tunnel"
5622:
5616:
5615:
5613:
5611:
5601:
5592:
5591:
5589:
5587:
5572:
5566:
5565:
5563:
5561:
5547:
5541:
5529:
5523:
5522:
5511:
5505:
5504:
5502:
5500:
5484:Historic England
5480:
5474:
5462:
5456:
5455:
5453:
5451:
5435:
5429:
5426:
5420:
5419:
5417:
5415:
5399:
5393:
5390:
5384:
5381:
5375:
5369:
5363:
5362:
5359:10.7289/V5TD9V7K
5346:
5340:
5339:
5295:
5289:
5288:
5286:
5284:
5278:
5267:
5258:
5252:
5251:
5223:
5217:
5216:
5206:
5188:
5164:
5158:
5157:
5112:
5106:
5105:
5069:
5063:
5062:
5014:
5008:
5007:
5000:
4994:
4993:
4991:
4989:
4975:
4969:
4968:
4966:
4964:
4958:news.sina.com.cn
4949:
4943:
4942:
4940:
4938:
4929:. Archived from
4919:
4913:
4912:
4901:
4895:
4894:
4892:
4890:
4885:. 5 October 2023
4875:
4869:
4868:
4866:
4864:
4854:
4846:
4840:
4839:
4837:
4835:
4818:
4811:
4805:
4804:
4798:
4796:
4781:
4775:
4774:
4772:
4770:
4751:
4745:
4744:
4742:
4740:
4725:
4719:
4718:
4716:
4714:
4695:
4689:
4688:
4686:
4684:
4663:
4657:
4656:
4650:
4642:
4640:
4638:
4628:
4620:
4614:
4613:
4611:
4609:
4590:
4584:
4583:
4572:
4566:
4565:
4563:
4561:
4556:. 12 August 2015
4546:
4540:
4539:
4537:
4535:
4516:
4510:
4509:
4507:
4505:
4486:
4480:
4479:
4473:
4465:
4459:
4458:
4452:
4444:
4442:
4440:
4424:
4418:
4417:
4415:
4413:
4398:
4387:
4386:
4384:
4382:
4371:
4363:
4357:
4356:
4354:
4352:
4343:. Archived from
4333:
4327:
4326:
4324:
4322:
4317:on 16 March 2012
4313:. Archived from
4303:
4297:
4296:
4294:
4292:
4273:
4267:
4266:
4248:
4224:
4218:
4212:
4206:
4205:
4203:
4201:
4186:
4180:
4179:
4167:
4161:
4160:
4158:
4156:
4141:
4135:
4132:
4123:
4120:
4114:
4113:
4091:
4085:
4080:
4074:
4073:
4071:
4069:
4055:
4049:
4048:
4042:
4034:
4024:
4015:
4009:
4008:
4007:
4005:
3983:
3977:
3976:
3969:
3963:
3962:
3953:
3947:
3940:
3934:
3933:
3901:
3895:
3888:
3882:
3881:
3859:
3853:
3852:
3820:
3741:Euphrates Tunnel
3489:Smuggling tunnel
3396:drainage tunnels
3315:, which share a
3275:Hamburg, Germany
3014:. It provides a
2900:St. Clair Tunnel
2753:Liverpool Waters
2710:East London Line
2570:Thomas Jefferson
2524:Fritchley Tunnel
2239:
2232:
2228:
2225:
2219:
2196:
2188:
2170:
2163:
2159:
2156:
2150:
2124:
2123:
2116:
1744:Lion Rock Tunnel
1724:Queensway Tunnel
1717:East Side Access
1714:
1708:
1659:Downtown Seattle
1637:
1618:
1583:section through
1489:Farnworth Tunnel
1378:Georgia Aquarium
1218:, which dug the
1172:canton of Glarus
1026:Bottom-up method
856:Queensway Tunnel
842:tunnels between
760:Queensway Tunnel
707:
700:
696:
693:
687:
656:
648:
536:by the kings of
455:
452:
434:
427:
316:Tunneling Shield
255:
252:
242:You can help by
235:
228:
21:
8116:
8115:
8111:
8110:
8109:
8107:
8106:
8105:
8071:
8070:
8069:
8064:
8060:Lightning Ridge
8043:
8017:
7981:
7865:
7826:
7813:
7783:Fallout shelter
7751:
7610:
7579:
7573:
7543:
7531:
7523:
7521:
7516:
7495:Earth materials
7436:
7398:
7387:
7296:
7290:
7241:
7218:
7172:Earth structure
7167:Erosion control
7065:Ground freezing
7055:Retaining walls
7038:
6980:
6970:
6931:Angle of repose
6889:
6830:
6764:
6757:
6756:
6717:Visible bedrock
6669:Simple sounding
6657:Shear vane test
6433:instrumentation
6432:
6430:
6422:
6413:
6408:
6378:
6373:
6317:
6239:
6234:
6192:
6160:
6144:
6139:
6129:
6127:
6116:
6112:
6102:
6100:
6088:
6084:
6074:
6072:
6068:Hindustan Times
6059:
6055:
6045:
6043:
6033:
6029:
6019:
6017:
6007:
6003:
5993:
5991:
5981:
5974:
5969:Wayback Machine
5960:
5956:
5946:
5944:
5935:
5934:
5930:
5920:
5918:
5917:on 21 June 2007
5909:
5908:
5904:
5890:
5888:
5876:
5872:
5862:
5860:
5855:
5854:
5850:
5834:
5833:
5826:
5824:
5815:
5814:
5810:
5801:
5800:
5796:
5786:
5784:
5774:
5767:
5762:Wayback Machine
5753:
5749:
5739:
5737:
5728:
5727:
5723:
5713:
5711:
5707:
5706:
5702:
5692:
5690:
5686:
5685:
5681:
5676:Wayback Machine
5667:
5663:
5644:
5640:
5630:
5628:
5624:
5623:
5619:
5609:
5607:
5603:
5602:
5595:
5585:
5583:
5574:
5573:
5569:
5559:
5557:
5549:
5548:
5544:
5539:Wayback Machine
5530:
5526:
5513:
5512:
5508:
5498:
5496:
5481:
5477:
5472:Wayback Machine
5463:
5459:
5449:
5447:
5438:
5436:
5432:
5427:
5423:
5413:
5411:
5402:
5400:
5396:
5391:
5387:
5382:
5378:
5370:
5366:
5347:
5343:
5296:
5292:
5282:
5280:
5279:on 9 March 2013
5276:
5265:
5259:
5255:
5224:
5220:
5165:
5161:
5113:
5109:
5070:
5066:
5015:
5011:
5002:
5001:
4997:
4987:
4985:
4983:m.xinhuanet.com
4977:
4976:
4972:
4962:
4960:
4950:
4946:
4936:
4934:
4933:on 16 July 2019
4921:
4920:
4916:
4907:. 5 June 2017.
4903:
4902:
4898:
4888:
4886:
4877:
4876:
4872:
4862:
4860:
4847:
4843:
4833:
4831:
4813:
4812:
4808:
4794:
4792:
4783:
4782:
4778:
4768:
4766:
4753:
4752:
4748:
4738:
4736:
4726:
4722:
4712:
4710:
4697:
4696:
4692:
4682:
4680:
4665:
4664:
4660:
4644:
4643:
4636:
4634:
4626:
4622:
4621:
4617:
4607:
4605:
4592:
4591:
4587:
4574:
4573:
4569:
4559:
4557:
4548:
4547:
4543:
4533:
4531:
4518:
4517:
4513:
4503:
4501:
4488:
4487:
4483:
4466:
4462:
4446:
4445:
4438:
4436:
4425:
4421:
4411:
4409:
4400:
4399:
4390:
4380:
4378:
4364:
4360:
4350:
4348:
4335:
4334:
4330:
4320:
4318:
4305:
4304:
4300:
4290:
4288:
4275:
4274:
4270:
4225:
4221:
4213:
4209:
4199:
4197:
4188:
4187:
4183:
4168:
4164:
4154:
4152:
4143:
4142:
4138:
4133:
4126:
4121:
4117:
4110:
4092:
4088:
4081:
4077:
4067:
4065:
4056:
4052:
4036:
4035:
4022:
4016:
4012:
4003:
4001:
3985:
3984:
3980:
3971:
3970:
3966:
3955:
3954:
3950:
3941:
3937:
3902:
3898:
3889:
3885:
3878:
3860:
3856:
3821:
3817:
3813:
3808:
3781:Structure gauge
3761:Hobby tunneling
3736:
3727:Big Dig project
3701:, which killed
3687:caught on fire.
3641:
3639:Major accidents
3582:
3580:Natural tunnels
3559:Line of Control
3519:. Although the
3491:
3483:Main articles:
3481:
3458:
3452:
3421:
3415:
3336:drainage tunnel
3123:
3086:in Norway from
3054:English Channel
3012:Gotthard Massif
2965:
2959:
2876:James Greathead
2793:, to its port,
2745:Waterloo Tunnel
2729:Waterloo Tunnel
2725:Victoria Tunnel
2419:, an important
2240:
2229:
2223:
2220:
2209:
2197:
2186:
2180:
2171:
2160:
2154:
2151:
2144:
2125:
2121:
2114:
1958:carbon monoxide
1934:
1923:
1892:
1885:
1873:New South Wales
1825:
1710:
1704:
1631:
1612:
1590:In Turkey, the
1558:
1553:
1522:
1513:
1439:
1415:excavated spoil
1411:
1395:Bjørvika Tunnel
1393:, examples are
1387:
1385:Undersea tunnel
1367:
1358:
1349:hydraulic jacks
1339:
1333:
1301:Illowra Battery
1260:
1232:
1157:deep-sea divers
1113:
1107:
1105:Boring machines
1091:First World War
1032:Top-down method
986:
973:
967:
929:
840:Elizabeth River
773:Kingsway Tunnel
708:
697:
691:
688:
673:
657:
646:
639:at the corners.
625:ground freezing
594:
588:
517:, drinking, or
507:
456:
450:
447:
440:needs expansion
425:
419:
393:
256:
250:
247:
226:
203:tunnel networks
173:Utility tunnels
45:Col du Galibier
35:
28:
23:
22:
15:
12:
11:
5:
8114:
8104:
8103:
8098:
8093:
8088:
8083:
8066:
8065:
8063:
8062:
8057:
8051:
8049:
8045:
8044:
8042:
8041:
8036:
8031:
8025:
8023:
8019:
8018:
8016:
8015:
8010:
8005:
8000:
7995:
7989:
7987:
7983:
7982:
7980:
7979:
7974:
7969:
7964:
7959:
7954:
7949:
7944:
7942:Mines of Paris
7939:
7934:
7929:
7924:
7919:
7917:Trench warfare
7914:
7912:Tunnel network
7909:
7907:Tunnel warfare
7904:
7899:
7894:
7889:
7884:
7879:
7873:
7871:
7870:Related topics
7867:
7866:
7864:
7863:
7858:
7853:
7848:
7843:
7838:
7832:
7830:
7815:
7814:
7812:
7811:
7806:
7801:
7796:
7791:
7785:
7780:
7775:
7770:
7765:
7759:
7757:
7753:
7752:
7750:
7749:
7744:
7739:
7734:
7729:
7724:
7722:Secret passage
7719:
7714:
7709:
7704:
7699:
7694:
7689:
7684:
7679:
7674:
7669:
7664:
7659:
7654:
7649:
7644:
7639:
7634:
7629:
7624:
7618:
7616:
7612:
7611:
7609:
7608:
7603:
7598:
7593:
7587:
7585:
7581:
7580:
7572:
7571:
7564:
7557:
7549:
7542:
7541:
7518:
7517:
7515:
7514:
7513:
7512:
7502:
7497:
7492:
7487:
7482:
7477:
7472:
7467:
7462:
7457:
7452:
7446:
7444:
7442:Related fields
7438:
7437:
7435:
7434:
7429:
7424:
7419:
7414:
7409:
7403:
7401:
7393:
7392:
7389:
7388:
7386:
7385:
7376:
7375:
7374:
7369:
7364:
7362:Classification
7359:
7354:
7343:
7342:
7341:
7336:
7334:Seismic hazard
7331:
7321:
7316:
7311:
7306:
7300:
7298:
7292:
7291:
7289:
7288:
7283:
7278:
7273:
7268:
7262:
7260:
7253:
7247:
7246:
7243:
7242:
7240:
7239:
7234:
7228:
7226:
7220:
7219:
7217:
7216:
7211:
7210:
7209:
7204:
7199:
7194:
7184:
7179:
7174:
7169:
7164:
7159:
7154:
7149:
7144:
7139:
7134:
7129:
7124:
7119:
7114:
7109:
7104:
7099:
7094:
7093:
7092:
7087:
7082:
7077:
7072:
7067:
7062:
7057:
7048:
7046:
7040:
7039:
7037:
7036:
7031:
7026:
7021:
7016:
7011:
7006:
7001:
6995:
6993:
6986:
6976:
6975:
6972:
6971:
6969:
6968:
6963:
6961:Shear strength
6958:
6953:
6948:
6943:
6938:
6936:Friction angle
6933:
6928:
6923:
6918:
6913:
6908:
6903:
6897:
6895:
6891:
6890:
6888:
6887:
6882:
6877:
6872:
6867:
6862:
6857:
6851:
6849:
6842:
6836:
6835:
6832:
6831:
6829:
6824:
6819:
6817:Oedometer test
6814:
6809:
6807:Sieve analysis
6804:
6799:
6794:
6789:
6784:
6779:
6774:
6769:
6767:
6759:
6758:
6755:
6754:
6748:
6747:
6741:
6740:
6734:
6733:
6727:
6726:
6720:
6719:
6708:
6707:
6696:
6695:
6693:Total sounding
6684:
6683:
6672:
6671:
6660:
6659:
6648:
6647:
6646:
6645:
6635:
6619:
6618:
6607:
6606:
6595:
6594:
6583:
6582:
6571:
6570:
6559:
6558:
6547:
6546:
6545:
6544:
6539:
6525:
6524:
6523:
6522:
6517:
6512:
6496:
6495:
6484:
6483:
6472:
6471:
6460:
6459:
6448:
6447:
6445:
6434:
6424:
6423:
6418:
6415:
6414:
6407:
6406:
6399:
6392:
6384:
6375:
6374:
6372:
6371:
6366:
6361:
6356:
6351:
6346:
6341:
6336:
6331:
6322:
6319:
6318:
6316:
6315:
6310:
6305:
6300:
6295:
6290:
6285:
6280:
6275:
6270:
6265:
6260:
6255:
6250:
6244:
6241:
6240:
6237:Infrastructure
6233:
6232:
6225:
6218:
6210:
6204:
6203:
6198:
6191:
6190:External links
6188:
6187:
6186:
6183:New York Times
6175:
6164:
6158:
6143:
6140:
6138:
6137:
6126:(in Norwegian)
6110:
6082:
6053:
6027:
6001:
5972:
5954:
5943:on 17 May 2011
5928:
5902:
5870:
5848:
5808:
5794:
5765:
5747:
5736:on 29 May 2013
5721:
5700:
5679:
5661:
5638:
5617:
5593:
5582:on 17 May 2009
5567:
5542:
5524:
5506:
5475:
5457:
5430:
5421:
5394:
5385:
5376:
5364:
5341:
5336:Science Direct
5310:(4): 247–293.
5290:
5253:
5218:
5159:
5107:
5080:(3): 928–935.
5064:
5009:
4995:
4970:
4944:
4914:
4896:
4870:
4859:. p. 1.37
4841:
4806:
4776:
4746:
4720:
4690:
4658:
4615:
4585:
4567:
4541:
4511:
4481:
4460:
4419:
4388:
4358:
4328:
4298:
4268:
4219:
4217:, p. 118.
4207:
4196:on 23 May 2013
4181:
4162:
4136:
4124:
4115:
4108:
4086:
4075:
4050:
4010:
3978:
3964:
3948:
3935:
3916:(3): 328–345.
3896:
3883:
3876:
3854:
3835:(4): 455–464.
3814:
3812:
3809:
3807:
3806:
3801:
3796:
3790:
3784:
3778:
3773:
3768:
3763:
3758:
3753:
3748:
3743:
3737:
3735:
3732:
3731:
3730:
3712:
3706:
3703:Princess Diana
3695:Pont de l'Alma
3688:
3678:
3672:
3666:
3660:
3654:
3648:
3640:
3637:
3636:
3635:
3617:
3610:Punarjani Guha
3607:
3597:
3581:
3578:
3509:Cu Chi Tunnels
3505:Secret tunnels
3485:Secret passage
3480:
3479:Secret tunnels
3477:
3451:
3448:
3417:Main article:
3414:
3411:
3410:
3409:
3403:
3388:
3369:
3358:
3347:
3343:Eiksund Tunnel
3339:
3320:
3293:
3278:
3259:
3216:
3201:
3187:
3122:
3119:
3118:
3117:
3110:
3095:
3080:
3065:
3062:United Kingdom
3050:Channel Tunnel
3046:
3043:Tsugaru Strait
3023:
3000:
2989:
2986:United Kingdom
2961:Main article:
2958:
2955:
2954:
2953:
2947:
2936:Tsugaru Strait
2928:
2921:
2914:Holland Tunnel
2910:
2907:Simplon Tunnel
2903:
2897:
2890:
2889:
2888:
2885:
2882:
2873:
2865:
2861:Mersey Railway
2857:Mersey Railway
2853:
2846:
2839:
2832:
2813:
2798:
2775:
2756:
2721:
2690:
2687:Spital Tongues
2678:
2671:
2665:
2657:
2637:Wapping Tunnel
2633:
2619:
2608:
2600:
2593:Merthyr Tydfil
2573:
2559:
2552:
2545:Cromford Canal
2537:
2521:
2502:
2468:
2437:
2413:
2405:
2369:
2358:
2295:Wapping Tunnel
2242:
2241:
2200:
2198:
2191:
2179:
2176:
2173:
2172:
2128:
2126:
2119:
2113:
2110:
2101:
2100:
2097:
2091:
2087:
2084:
2081:
2077:
2073:
2070:
2067:
1942:Pont de l'Alma
1922:
1919:
1884:
1881:
1824:
1821:
1592:Eurasia Tunnel
1568:, part of the
1557:
1554:
1552:
1549:
1548:
1547:
1544:
1541:
1536:
1521:
1518:
1512:
1509:
1508:
1507:
1504:
1501:ISO containers
1485:
1465:
1438:
1435:
1410:
1407:
1391:immersed tubes
1383:Main article:
1366:
1363:
1357:
1354:
1352:(10 ft).
1335:Main article:
1332:
1329:
1259:
1256:
1231:
1228:
1109:Main article:
1106:
1103:
1082:United Kingdom
1041:
1040:
1036:slurry walling
1029:
985:
982:
969:Main article:
966:
963:
928:
925:
883:Channel Tunnel
800:Lincoln Tunnel
796:Holland Tunnel
794:in Japan; the
710:
709:
660:
658:
651:
645:
642:
641:
640:
628:
617:
590:Main article:
587:
584:
506:
503:
458:
457:
437:
435:
418:
415:
397:Middle English
392:
389:
258:
257:
251:September 2024
238:
236:
225:
222:
179:Secret tunnels
98:Tunnel on the
84:Rigshospitalet
80:Utility tunnel
57:Fort de Mutzig
26:
9:
6:
4:
3:
2:
8113:
8102:
8099:
8097:
8094:
8092:
8089:
8087:
8084:
8082:
8079:
8078:
8076:
8061:
8058:
8056:
8053:
8052:
8050:
8046:
8040:
8037:
8035:
8032:
8030:
8027:
8026:
8024:
8020:
8014:
8011:
8009:
8006:
8004:
8001:
7999:
7996:
7994:
7991:
7990:
7988:
7984:
7978:
7975:
7973:
7970:
7968:
7965:
7963:
7960:
7958:
7955:
7953:
7950:
7948:
7945:
7943:
7940:
7938:
7935:
7933:
7930:
7928:
7925:
7923:
7920:
7918:
7915:
7913:
7910:
7908:
7905:
7903:
7900:
7898:
7895:
7893:
7890:
7888:
7887:Civil defense
7885:
7883:
7880:
7878:
7875:
7874:
7872:
7868:
7862:
7859:
7857:
7854:
7852:
7849:
7847:
7844:
7842:
7839:
7837:
7834:
7833:
7831:
7829:
7824:
7820:
7816:
7810:
7807:
7805:
7802:
7800:
7797:
7795:
7792:
7789:
7786:
7784:
7781:
7779:
7776:
7774:
7773:Blast shelter
7771:
7769:
7766:
7764:
7761:
7760:
7758:
7754:
7748:
7745:
7743:
7740:
7738:
7735:
7733:
7730:
7728:
7727:Semi-basement
7725:
7723:
7720:
7718:
7715:
7713:
7710:
7708:
7705:
7703:
7702:Utility vault
7700:
7698:
7695:
7693:
7690:
7688:
7687:Rock-cut tomb
7685:
7683:
7682:Rapid transit
7680:
7678:
7675:
7673:
7670:
7668:
7665:
7663:
7660:
7658:
7657:Earth shelter
7655:
7653:
7650:
7648:
7645:
7643:
7640:
7638:
7635:
7633:
7630:
7628:
7625:
7623:
7620:
7619:
7617:
7613:
7607:
7604:
7602:
7599:
7597:
7594:
7592:
7589:
7588:
7586:
7582:
7578:
7570:
7565:
7563:
7558:
7556:
7551:
7550:
7547:
7540:
7535:
7530:
7529:
7526:
7511:
7508:
7507:
7506:
7503:
7501:
7498:
7496:
7493:
7491:
7488:
7486:
7483:
7481:
7478:
7476:
7473:
7471:
7470:Geomorphology
7468:
7466:
7463:
7461:
7458:
7456:
7453:
7451:
7448:
7447:
7445:
7443:
7439:
7433:
7430:
7428:
7425:
7423:
7420:
7418:
7415:
7413:
7410:
7408:
7405:
7404:
7402:
7400:
7394:
7384:
7380:
7377:
7373:
7370:
7368:
7365:
7363:
7360:
7358:
7355:
7353:
7350:
7349:
7347:
7344:
7340:
7337:
7335:
7332:
7330:
7327:
7326:
7325:
7322:
7320:
7317:
7315:
7314:Consolidation
7312:
7310:
7309:Frost heaving
7307:
7305:
7302:
7301:
7299:
7293:
7287:
7284:
7282:
7279:
7277:
7274:
7272:
7269:
7267:
7264:
7263:
7261:
7257:
7254:
7252:
7248:
7238:
7235:
7233:
7230:
7229:
7227:
7225:
7221:
7215:
7212:
7208:
7205:
7203:
7200:
7198:
7195:
7193:
7190:
7189:
7188:
7187:Geosynthetics
7185:
7183:
7182:Crushed stone
7180:
7178:
7175:
7173:
7170:
7168:
7165:
7163:
7160:
7158:
7155:
7153:
7150:
7148:
7145:
7143:
7140:
7138:
7137:Cut-and-cover
7135:
7133:
7130:
7128:
7125:
7123:
7120:
7118:
7115:
7113:
7110:
7108:
7105:
7103:
7100:
7098:
7095:
7091:
7088:
7086:
7083:
7081:
7078:
7076:
7073:
7071:
7068:
7066:
7063:
7061:
7058:
7056:
7053:
7052:
7050:
7049:
7047:
7045:
7041:
7035:
7032:
7030:
7027:
7025:
7022:
7020:
7017:
7015:
7012:
7010:
7007:
7005:
7002:
7000:
6997:
6996:
6994:
6990:
6987:
6984:
6977:
6967:
6964:
6962:
6959:
6957:
6954:
6952:
6949:
6947:
6944:
6942:
6939:
6937:
6934:
6932:
6929:
6927:
6924:
6922:
6919:
6917:
6914:
6912:
6909:
6907:
6906:Water content
6904:
6902:
6899:
6898:
6896:
6892:
6886:
6883:
6881:
6878:
6876:
6873:
6871:
6868:
6866:
6863:
6861:
6858:
6856:
6853:
6852:
6850:
6846:
6843:
6841:
6837:
6828:
6825:
6823:
6820:
6818:
6815:
6813:
6810:
6808:
6805:
6803:
6800:
6798:
6795:
6793:
6790:
6788:
6785:
6783:
6780:
6778:
6775:
6773:
6770:
6768:
6766:
6760:
6753:
6750:
6749:
6746:
6743:
6742:
6739:
6736:
6735:
6732:
6729:
6728:
6725:
6722:
6721:
6718:
6714:
6710:
6709:
6706:
6702:
6698:
6697:
6694:
6690:
6686:
6685:
6682:
6678:
6674:
6673:
6670:
6666:
6662:
6661:
6658:
6654:
6650:
6649:
6644:
6640:
6636:
6634:
6630:
6626:
6625:
6624:
6621:
6620:
6617:
6613:
6609:
6608:
6605:
6604:Sample series
6601:
6597:
6596:
6593:
6589:
6585:
6584:
6581:
6577:
6573:
6572:
6569:
6565:
6561:
6560:
6557:
6553:
6549:
6548:
6543:
6540:
6538:
6535:
6534:
6531:
6527:
6526:
6521:
6518:
6516:
6513:
6511:
6508:
6507:
6506:
6502:
6498:
6497:
6494:
6490:
6486:
6485:
6482:
6478:
6474:
6473:
6470:
6466:
6462:
6461:
6458:
6454:
6450:
6449:
6446:
6443:
6438:
6435:
6429:
6428:Investigation
6425:
6421:
6416:
6412:
6405:
6400:
6398:
6393:
6391:
6386:
6385:
6382:
6370:
6367:
6365:
6362:
6360:
6357:
6355:
6352:
6350:
6347:
6345:
6342:
6340:
6337:
6335:
6332:
6330:
6327:
6324:
6323:
6320:
6314:
6311:
6309:
6306:
6304:
6301:
6299:
6296:
6294:
6291:
6289:
6286:
6284:
6281:
6279:
6276:
6274:
6271:
6269:
6266:
6264:
6261:
6259:
6256:
6254:
6251:
6249:
6246:
6245:
6242:
6238:
6231:
6226:
6224:
6219:
6217:
6212:
6211:
6208:
6202:
6199:
6197:
6194:
6193:
6184:
6180:
6176:
6173:
6172:0-909937-33-8
6169:
6165:
6161:
6155:
6151:
6146:
6145:
6125:
6121:
6114:
6099:
6098:
6093:
6086:
6070:
6069:
6064:
6057:
6042:
6038:
6031:
6016:
6012:
6005:
5990:
5986:
5979:
5977:
5970:
5966:
5963:
5958:
5942:
5938:
5932:
5916:
5912:
5906:
5899:
5887:
5882:
5874:
5859:. 19 May 2010
5858:
5852:
5844:
5838:
5822:
5818:
5812:
5804:
5798:
5783:
5779:
5772:
5770:
5763:
5759:
5756:
5751:
5735:
5731:
5725:
5710:
5704:
5689:
5683:
5677:
5673:
5670:
5665:
5657:
5653:
5649:
5642:
5627:
5621:
5606:
5600:
5598:
5581:
5577:
5571:
5556:
5552:
5546:
5540:
5536:
5533:
5528:
5521:. 1 May 2013.
5520:
5516:
5510:
5495:
5494:
5489:
5485:
5479:
5473:
5469:
5466:
5461:
5445:
5441:
5434:
5425:
5409:
5405:
5398:
5389:
5380:
5374:
5368:
5360:
5356:
5352:
5345:
5337:
5333:
5329:
5325:
5321:
5317:
5313:
5309:
5305:
5301:
5294:
5275:
5271:
5264:
5257:
5249:
5245:
5241:
5237:
5233:
5229:
5222:
5214:
5210:
5205:
5200:
5196:
5192:
5187:
5182:
5178:
5174:
5170:
5163:
5155:
5151:
5147:
5143:
5139:
5135:
5131:
5127:
5123:
5119:
5111:
5103:
5099:
5095:
5091:
5087:
5083:
5079:
5075:
5068:
5060:
5056:
5052:
5048:
5044:
5040:
5036:
5032:
5028:
5024:
5020:
5013:
5005:
4999:
4984:
4980:
4974:
4959:
4955:
4948:
4932:
4928:
4924:
4918:
4910:
4906:
4900:
4884:
4880:
4874:
4858:
4853:
4845:
4830:
4826:
4822:
4817:
4810:
4802:
4790:
4786:
4780:
4764:
4760:
4756:
4750:
4735:
4731:
4724:
4708:
4704:
4700:
4694:
4678:
4674:
4673:
4668:
4662:
4654:
4648:
4632:
4625:
4619:
4603:
4599:
4595:
4589:
4581:
4577:
4571:
4555:
4551:
4545:
4529:
4525:
4521:
4515:
4499:
4495:
4491:
4485:
4477:
4472:
4464:
4456:
4450:
4434:
4430:
4423:
4407:
4403:
4397:
4395:
4393:
4377:
4376:
4370:
4362:
4346:
4342:
4338:
4332:
4316:
4312:
4308:
4302:
4286:
4282:
4278:
4272:
4264:
4260:
4256:
4252:
4247:
4242:
4238:
4234:
4230:
4223:
4216:
4211:
4195:
4191:
4185:
4177:
4173:
4166:
4150:
4146:
4140:
4131:
4129:
4119:
4111:
4105:
4101:
4097:
4090:
4084:
4079:
4064:
4061:
4054:
4046:
4040:
4032:
4028:
4021:
4014:
4000:
3996:
3992:
3988:
3982:
3974:
3968:
3960:
3959:
3952:
3945:
3939:
3931:
3927:
3923:
3919:
3915:
3911:
3907:
3900:
3893:
3887:
3879:
3877:9781848261761
3873:
3869:
3865:
3858:
3850:
3846:
3842:
3838:
3834:
3830:
3826:
3819:
3815:
3805:
3802:
3800:
3797:
3794:
3791:
3788:
3785:
3782:
3779:
3777:
3774:
3772:
3771:Rapid transit
3769:
3767:
3764:
3762:
3759:
3757:
3754:
3752:
3749:
3747:
3744:
3742:
3739:
3738:
3728:
3724:
3720:
3716:
3713:
3710:
3707:
3704:
3700:
3696:
3692:
3689:
3686:
3682:
3679:
3676:
3673:
3670:
3667:
3664:
3661:
3658:
3655:
3652:
3649:
3646:
3643:
3642:
3633:
3629:
3625:
3621:
3618:
3615:
3614:Kerala, India
3611:
3608:
3605:
3601:
3598:
3595:
3592:
3591:
3586:
3577:
3575:
3570:
3568:
3564:
3560:
3556:
3552:
3548:
3547:illegal drugs
3544:
3540:
3536:
3534:
3530:
3526:
3522:
3518:
3514:
3510:
3506:
3500:
3495:
3490:
3486:
3476:
3474:
3471:
3467:
3463:
3457:
3447:
3445:
3438:
3434:
3430:
3425:
3420:
3407:
3404:
3401:
3397:
3393:
3389:
3386:
3382:
3378:
3374:
3370:
3367:
3363:
3359:
3355:
3351:
3348:
3344:
3340:
3337:
3333:
3329:
3325:
3321:
3318:
3314:
3310:
3306:
3305:Interstate 93
3302:
3298:
3294:
3291:
3287:
3283:
3279:
3276:
3272:
3268:
3264:
3260:
3257:
3253:
3252:Sideling Hill
3249:
3245:
3241:
3240:Blue Mountain
3237:
3233:
3229:
3225:
3221:
3217:
3214:
3210:
3206:
3202:
3199:
3195:
3191:
3188:
3185:
3184:Alpine Tunnel
3181:
3177:
3173:
3169:
3168:Moffat Tunnel
3165:
3164:
3160:
3155:
3148:
3143:
3136:
3132:
3127:
3115:
3111:
3108:
3104:
3100:
3096:
3093:
3089:
3085:
3084:Lærdal Tunnel
3081:
3078:
3074:
3070:
3066:
3063:
3059:
3055:
3051:
3047:
3044:
3040:
3036:
3032:
3028:
3027:Seikan Tunnel
3024:
3021:
3017:
3013:
3009:
3005:
3001:
2998:
2994:
2990:
2987:
2983:
2979:
2975:
2974:
2969:
2964:
2951:
2948:
2945:
2941:
2937:
2933:
2932:Seikan Tunnel
2929:
2926:
2922:
2919:
2915:
2911:
2908:
2904:
2901:
2898:
2895:
2894:Northern line
2891:
2886:
2883:
2880:
2879:
2877:
2874:
2870:
2869:Severn Tunnel
2866:
2862:
2858:
2854:
2851:
2847:
2844:
2840:
2837:
2833:
2830:
2826:
2825:Sierra Nevada
2822:
2818:
2814:
2811:
2807:
2803:
2799:
2796:
2792:
2788:
2784:
2780:
2776:
2773:
2769:
2765:
2761:
2757:
2754:
2750:
2746:
2742:
2741:Waterloo Dock
2738:
2734:
2730:
2726:
2722:
2719:
2715:
2711:
2707:
2703:
2699:
2695:
2694:Thames Tunnel
2691:
2688:
2683:
2679:
2676:
2672:
2669:
2666:
2662:
2658:
2655:
2650:
2646:
2642:
2638:
2634:
2631:
2627:
2623:
2620:
2617:
2613:
2609:
2605:
2601:
2598:
2594:
2590:
2586:
2582:
2578:
2574:
2571:
2567:
2563:
2562:Derby Tunnels
2560:
2557:
2553:
2550:
2546:
2542:
2538:
2534:
2529:
2525:
2522:
2519:
2515:
2511:
2507:
2503:
2500:
2496:
2492:
2488:
2485:transport of
2484:
2480:
2476:
2472:
2469:
2466:
2462:
2458:
2454:
2450:
2446:
2442:
2438:
2434:
2430:
2426:
2422:
2418:
2414:
2410:
2406:
2403:
2399:
2394:
2390:
2386:
2382:
2378:
2374:
2370:
2367:
2363:
2362:Siloam Tunnel
2359:
2356:
2352:
2348:
2344:
2340:
2339:
2338:
2330:
2324:
2320:
2315:
2308:
2303:
2296:
2290:
2283:
2279:
2272:
2267:
2260:
2256:
2248:
2238:
2235:
2227:
2217:
2213:
2207:
2206:
2201:This section
2199:
2195:
2190:
2189:
2185:
2169:
2166:
2158:
2155:December 2017
2148:
2143:
2139:
2135:
2134:
2127:
2118:
2117:
2109:
2105:
2098:
2095:
2094:Ground motion
2092:
2088:
2085:
2082:
2078:
2074:
2071:
2068:
2065:
2064:
2063:
2060:
2058:
2054:
2050:
2046:
2041:
2038:
2036:
2031:
2027:
2023:
2019:
2018:pressure wave
2016:
2011:
2009:
2005:
2001:
1997:
1992:
1990:
1989:exhaust gases
1986:
1981:
1979:
1975:
1971:
1967:
1963:
1959:
1951:
1947:
1943:
1938:
1932:
1928:
1918:
1916:
1912:
1908:
1901:
1896:
1890:
1880:
1878:
1874:
1870:
1869:Stanwell Park
1866:
1862:
1858:
1856:
1853:
1849:
1842:
1838:
1834:
1829:
1820:
1818:
1814:
1811:
1807:
1803:
1799:
1795:
1791:
1786:
1784:
1783:Sound Transit
1780:
1776:
1774:
1771:
1767:
1766:Yangtze River
1763:
1759:
1757:
1753:
1749:
1745:
1740:
1737:
1733:
1729:
1725:
1720:
1718:
1713:
1709: and
1707:
1702:
1698:
1694:
1690:
1686:
1682:
1678:
1674:
1673:New York City
1670:
1668:
1664:
1660:
1656:
1651:
1649:
1645:
1640:
1635:
1630:
1626:
1621:
1616:
1611:
1606:
1604:
1599:
1597:
1593:
1588:
1586:
1582:
1578:
1571:
1567:
1562:
1545:
1542:
1540:
1537:
1535:
1532:
1531:
1526:
1517:
1505:
1502:
1498:
1494:
1490:
1486:
1483:
1482:Auburn Tunnel
1478:
1474:
1470:
1466:
1463:
1459:
1455:
1454:
1453:
1448:
1443:
1434:
1432:
1428:
1427:permanent way
1424:
1420:
1416:
1409:Temporary way
1406:
1404:
1400:
1396:
1392:
1386:
1379:
1375:
1371:
1362:
1353:
1350:
1346:
1345:
1338:
1328:
1326:
1325:strengthening
1322:
1318:
1317:geomechanical
1314:
1306:
1302:
1298:
1294:
1292:
1288:
1284:
1283:cross section
1280:
1276:
1273:
1269:
1265:
1255:
1253:
1248:
1245:
1236:
1227:
1225:
1221:
1217:
1213:
1209:
1205:
1201:
1197:
1193:
1189:
1185:
1181:
1177:
1173:
1169:
1165:
1160:
1158:
1154:
1150:
1144:
1141:
1137:
1130:
1126:
1122:
1117:
1112:
1102:
1100:
1096:
1092:
1088:
1083:
1078:
1073:
1068:
1064:
1062:
1057:
1053:
1048:
1046:
1037:
1033:
1030:
1027:
1024:
1023:
1022:
1019:
1017:
1013:
1009:
1008:Cut-and-cover
1002:
999:
995:
990:
984:Cut-and-cover
981:
977:
972:
962:
960:
955:
950:
948:
944:
940:
935:
924:
922:
918:
914:
910:
906:
901:
899:
895:
891:
886:
884:
879:
877:
873:
869:
865:
861:
857:
853:
849:
845:
841:
837:
833:
829:
825:
821:
817:
813:
809:
808:New York City
805:
801:
797:
793:
792:Seikan Tunnel
788:
786:
782:
778:
774:
769:
765:
761:
756:
754:
750:
746:
741:
739:
731:
727:
723:
722:Harbor Tunnel
718:
714:
706:
703:
695:
692:February 2021
685:
681:
677:
671:
670:
666:
661:This section
659:
655:
650:
649:
638:
633:
629:
626:
621:
618:
614:
613:Stand-up time
611:
610:
609:
606:
602:
599:
593:
583:
581:
577:
572:
570:
566:
561:
559:
555:
551:
547:
543:
539:
535:
531:
530:Siloam Tunnel
526:
524:
520:
516:
512:
502:
500:
496:
492:
491:siege attacks
488:
484:
476:
471:
467:
465:
454:
445:
441:
438:This section
436:
433:
429:
428:
424:
414:
412:
408:
405:
401:
398:
386:
382:
377:
371:
367:
363:
359:
354:
350:
347:
345:
340:
338:
333:
331:
326:
324:
319:
317:
312:
310:
309:Cut and Cover
305:
303:
298:
296:
291:
289:
288:Cross-section
284:
282:
277:
275:
270:
268:
263:
254:
245:
241:
237:
234:
230:
229:
221:
219:
213:
211:
206:
204:
200:
196:
192:
188:
184:
180:
176:
174:
170:
169:hydroelectric
166:
162:
158:
157:rapid transit
154:
150:
146:
143:
138:
136:
135:immersed tube
132:
128:
124:
116:
111:
105:
101:
96:
89:
85:
81:
77:
70:
65:
58:
53:
46:
41:
37:
33:
19:
7877:Cave dweller
7737:Storm cellar
7696:
7539:Architecture
7490:Biogeography
7485:Hydrogeology
7475:Soil science
7455:Geochemistry
7214:Infiltration
7142:Cut and fill
7085:Soil nailing
6951:Permeability
6916:Bulk density
6633:Inclinometer
6556:Ram sounding
6441:
6344:Construction
6329:Architecture
6325:
6312:
6149:
6142:Bibliography
6128:. Retrieved
6123:
6113:
6101:. Retrieved
6095:
6085:
6073:. Retrieved
6066:
6056:
6044:. Retrieved
6040:
6030:
6018:. Retrieved
6014:
6004:
5992:. Retrieved
5988:
5957:
5945:. Retrieved
5941:the original
5931:
5919:. Retrieved
5915:the original
5905:
5896:
5891:15 September
5889:. Retrieved
5885:
5873:
5863:30 September
5861:. Retrieved
5851:
5825:. Retrieved
5820:
5811:
5797:
5785:. Retrieved
5781:
5750:
5740:30 September
5738:. Retrieved
5734:the original
5724:
5714:30 September
5712:. Retrieved
5703:
5693:30 September
5691:. Retrieved
5682:
5664:
5647:
5641:
5631:30 September
5629:. Retrieved
5620:
5610:30 September
5608:. Retrieved
5584:. Retrieved
5580:the original
5570:
5560:30 September
5558:. Retrieved
5554:
5545:
5527:
5518:
5509:
5497:. Retrieved
5491:
5478:
5460:
5448:. Retrieved
5433:
5424:
5412:. Retrieved
5397:
5388:
5379:
5367:
5344:
5334:– via
5307:
5303:
5293:
5281:. Retrieved
5274:the original
5269:
5256:
5231:
5227:
5221:
5176:
5172:
5162:
5121:
5117:
5110:
5077:
5073:
5067:
5026:
5022:
5012:
4998:
4986:. Retrieved
4982:
4973:
4961:. Retrieved
4957:
4947:
4935:. Retrieved
4931:the original
4926:
4917:
4899:
4887:. Retrieved
4882:
4873:
4861:. Retrieved
4856:
4844:
4832:. Retrieved
4820:
4809:
4799:– via
4793:. Retrieved
4788:
4779:
4767:. Retrieved
4763:the original
4758:
4749:
4737:. Retrieved
4733:
4723:
4711:. Retrieved
4702:
4693:
4681:. Retrieved
4670:
4661:
4635:. Retrieved
4618:
4606:. Retrieved
4602:the original
4597:
4588:
4579:
4570:
4558:. Retrieved
4553:
4544:
4532:. Retrieved
4523:
4514:
4502:. Retrieved
4493:
4484:
4475:
4463:
4437:. Retrieved
4432:
4422:
4410:. Retrieved
4405:
4379:. Retrieved
4373:
4361:
4349:. Retrieved
4345:the original
4340:
4331:
4319:. Retrieved
4315:the original
4310:
4301:
4289:. Retrieved
4285:the original
4280:
4277:"Tunnelling"
4271:
4239:(1): 49–56.
4236:
4232:
4222:
4210:
4198:. Retrieved
4194:the original
4184:
4175:
4165:
4153:. Retrieved
4149:the original
4139:
4118:
4099:
4089:
4078:
4068:26 September
4066:. Retrieved
4062:
4053:
4039:cite journal
4030:
4027:Espeleo-Tema
4026:
4013:
4002:, retrieved
3990:
3987:"tunnel, n."
3981:
3972:
3967:
3957:
3951:
3943:
3938:
3913:
3909:
3899:
3891:
3886:
3863:
3857:
3832:
3828:
3818:
3746:Cattle creep
3571:
3537:
3527:, under the
3503:
3459:
3450:Military use
3444:drift mining
3441:
3400:Chicago area
3328:Kuala Lumpur
3324:SMART Tunnel
3186:are higher.)
3052:crosses the
2923:In 1945 the
2806:Metropolitan
2781:through the
2700:and his son
2641:Wapping Dock
2510:Dudley Canal
2440:
2427:pass in the
2417:Via Flaminia
2398:Pythagoreion
2381:North Aegean
2335:
2230:
2221:
2210:Please help
2205:verification
2202:
2161:
2152:
2145:Please help
2141:
2130:
2106:
2102:
2061:
2042:
2039:
2020:produced by
2012:
2008:firefighters
1993:
1982:
1955:
1910:
1906:
1904:
1859:
1845:
1815:
1809:
1806:Kuala Lumpur
1797:
1790:SMART Tunnel
1787:
1777:
1760:
1742:Hong Kong's
1741:
1728:River Mersey
1721:
1671:
1652:
1641:
1622:
1607:
1602:
1600:
1589:
1574:
1514:
1451:
1423:double track
1419:narrow gauge
1412:
1388:
1374:Shark tunnel
1359:
1344:pipe jacking
1342:
1340:
1337:Pipe jacking
1331:Pipe jacking
1310:
1279:geotechnical
1261:
1249:
1241:
1208:Herrenknecht
1161:
1145:
1134:
1069:
1065:
1049:
1042:
1031:
1025:
1020:
1007:
1006:
994:Saint-Michel
978:
974:
965:Construction
951:
930:
902:
887:
880:
852:River Mersey
789:
764:River Mersey
757:
742:
735:
713:
698:
689:
674:Please help
662:
612:
607:
603:
595:
573:
562:
527:
521:. The first
508:
480:
464:paleoburrows
461:
448:
444:adding to it
439:
410:
406:
399:
394:
348:
344:Ventilation:
343:
341:
336:
334:
329:
327:
322:
320:
315:
313:
308:
306:
301:
299:
294:
292:
287:
285:
280:
278:
273:
271:
266:
264:
261:
248:
244:adding to it
239:
214:
207:
177:
139:
122:
120:
100:Taipei Metro
36:
8055:Coober Pedy
7947:Mole people
7892:Coober Pedy
7809:Spider hole
7692:Root cellar
7577:subterranea
7500:Archaeology
7224:Foundations
7197:Geomembrane
7080:Slurry wall
7019:Water table
6983:Interaction
6979:Structures
6966:Sensitivity
6763:Laboratory
6308:Storm drain
6278:Interchange
6130:13 November
6103:10 December
6075:10 December
5414:14 December
5179:(7): 1283.
5124:: 277–289.
5029:(12): 756.
4672:Daily Sabah
4412:27 December
4004:1 September
3793:Tunnel tree
3787:Tree tunnel
3766:Megaproject
3557:across the
3529:Berlin Wall
3429:coal mining
3381:groundwater
3317:concurrency
3244:Laurel Hill
3114:Rove Tunnel
3073:Switzerland
3008:Switzerland
2821:Donner Pass
2774:, its port.
2696:, built by
2461:Kizil River
2445:Kızıl River
2307:Donner Pass
2149:if you can.
2035:Tunnel boom
2030:rarefaction
2026:compression
2015:aerodynamic
1770:Wuhan Metro
1748:New Kowloon
1648:A2 motorway
1632: [
1613: [
1608:The French
1473:Lime Street
1437:Enlargement
1356:Box jacking
1323:for tunnel
1311:By special
1291:deformation
1198:tunnels in
1180:Switzerland
1149:water table
1129:Switzerland
998:Paris Métro
913:Switzerland
850:; the 1934
824:Long Island
738:drawbridges
620:Groundwater
532:, built in
224:Terminology
8075:Categories
7357:Mitigation
7339:Shear wave
7324:Earthquake
7319:Compaction
7304:Permafrost
7295:Phenomena/
7192:Geotextile
7117:Embankment
7107:Excavation
7044:Earthworks
7004:Vegetation
6999:Topography
6921:Thixotropy
6911:Void ratio
6894:Properties
6792:Hydrometer
6537:Piezometer
6457:Core drill
6369:Urban park
6349:Playground
6273:Footbridge
5827:23 January
5787:23 January
4889:23 January
4863:20 October
4834:3 February
4769:23 January
4739:23 January
4713:23 January
4683:23 January
4608:23 January
4560:23 January
4534:24 January
4504:23 January
4439:23 January
4381:23 January
4341:Hslzuid.nl
4215:Ellis 2015
3811:References
3719:Fort Point
3620:Torghatten
3594:Lava tubes
3561:along the
3545:, such as
3543:contraband
3462:Mittelwerk
3454:See also:
3433:New Taipei
3375:Tunnel in
3309:US Route 1
3269:, and the
3213:1992 flood
3020:Swiss Alps
2749:Merseyrail
2668:Box Tunnel
2649:Merseyrail
2589:Pentrebach
2577:Penydarren
2556:Derbyshire
2508:is on the
2499:Gloucester
2421:Roman road
2224:March 2013
2182:See also:
2178:In history
2047:tunnel in
1865:avalanches
1861:Snow sheds
1810:underneath
1804:waters in
1736:Birkenhead
1726:under the
1681:East River
1679:under the
1644:Maastricht
1594:under the
1458:Gib Tunnel
1313:monitoring
1212:Big Bertha
1196:Chong Ming
1194:, and the
905:asphyxiate
866:tunnel in
838:; and the
804:New Jersey
762:under the
747:and urban
576:Gaza Strip
515:irrigation
451:March 2013
421:See also:
404:Old French
385:Bangladesh
330:Excavation
191:contraband
171:stations.
88:Copenhagen
69:Guanajuato
55:Tunnel in
43:Tunnel in
8086:Crossings
7823:quarrying
7717:Wine cave
7637:Catacombs
7480:Hydrology
7460:Petrology
7348:analysis
7346:Landslide
7251:Mechanics
7162:Track bed
7147:Fill dirt
7132:Terracing
6705:Trial pit
6520:Statnamic
6505:Load test
6326:See also:
6046:4 October
6020:4 October
5994:4 October
5886:Gothamist
5656:655126526
5332:108456041
5195:1661-7827
5154:116606435
5146:0886-7798
5102:125620030
5094:0954-4097
5059:207140116
4829:0362-4331
4631:Unicredit
4427:Sun, Li.
4263:248136002
4255:2500-0632
3930:0016-7428
3849:1016-8664
3539:Smugglers
3533:espionage
3248:Rays Hill
3194:Liverpool
3045:undersea.
2912:The 1927
2867:The rail
2848:The 1882
2783:Appennini
2733:Liverpool
2635:The 1829
2626:Liverpool
2616:Liverpool
2581:Abercynon
2539:The 1794
2504:The 1791
2433:Vespasian
2429:Apennines
2389:Eupalinos
2271:Liverpool
2076:grouting.
1980:of 1904.
1907:underpass
1883:Underpass
1837:Esztergom
1833:Dark Gate
1732:Liverpool
1712:<F>
1685:Manhattan
1596:Bosphorus
1477:Liverpool
1469:Edge Hill
1462:Mittagong
1287:shotcrete
1072:Victorian
1003:(c. 1910)
768:Liverpool
758:The 1934
749:Hong Kong
745:Manhattan
726:Baltimore
663:does not
598:boreholes
534:Jerusalem
391:Etymology
366:Pirkanmaa
183:smuggling
165:aqueducts
90:, Denmark
18:Underpass
7778:Casemate
7732:Stepwell
7672:Hypogeum
7662:Erdstall
7652:Dry well
7632:Borehole
7622:Basement
7606:Sinkhole
7510:Agrology
7399:software
7297:problems
7127:Causeway
7102:Landfill
7029:Subgrade
6946:Porosity
6941:Cohesion
6293:Pipeline
6288:Overpass
6268:Drainage
6258:Causeway
5965:Archived
5947:19 April
5921:19 April
5837:cite web
5758:Archived
5672:Archived
5586:19 April
5535:Archived
5519:BBC News
5499:19 March
5468:Archived
5444:Archived
5408:Archived
5234:: 8–21.
5213:30974822
5051:26577216
4909:Archived
4707:Archived
4677:Archived
4647:cite web
4637:13 April
4528:Archived
4526:. 1881.
4498:Archived
4496:. 1881.
4449:cite web
4351:19 April
4321:19 April
4200:19 April
4155:19 April
3734:See also
3721:tunnel,
3697:tunnel,
3632:Lekamøya
3574:erdstall
3525:Cold War
3377:Colombia
3373:La Linea
3332:Malaysia
3290:Svalbard
3176:Colorado
3079:in 2016.
3060:and the
3056:between
3039:Hokkaido
2944:Hokkaido
2720:network.
2612:Rainhill
2607:America.
2465:Gökırmak
2436:visible.
2368:attacks.
2131:require
2112:Examples
1915:overpass
1794:Malaysia
1756:aqueduct
1730:between
1625:Shanghai
1417:, often
1399:Marmaray
1200:Shanghai
1184:HSL-Zuid
1087:sewerage
980:tunnel.
898:Virginia
892:and the
832:Michigan
830:between
802:between
565:Ethiopia
558:aqueduct
546:aqueduct
519:sewerage
497:", and "
400:tonnelle
210:diameter
131:pipeline
71:, Mexico
59:, France
47:, France
8081:Tunnels
8039:Malator
7957:Sapping
7677:Manhole
7642:Dungeon
7450:Geology
7422:SVSlope
7232:Shallow
7152:Grading
7090:Tieback
7034:Subsoil
7024:Bedrock
7014:Topsoil
7009:Terrain
6802:R-value
6765:testing
6515:Dynamic
6442:in situ
6440:Field (
6364:Theatre
6359:Stadium
5898:Queens.
5450:17 July
5437:Blogcu
5312:Bibcode
5283:4 April
5236:Bibcode
5204:6480231
5126:Bibcode
5031:Bibcode
4795:29 July
4291:20 June
4063:WTC2023
3756:Culvert
3551:weapons
3511:or the
3301:Big Dig
3209:Chicago
3131:Big Dig
3121:Notable
3107:highway
3092:Aurland
2957:Longest
2772:Trieste
2712:of the
2675:Shildon
2614:, near
2518:England
2495:Swindon
2479:England
2473:on the
2453:Durağan
2449:Boyabat
2409:tunnels
2355:Gonabad
2133:cleanup
2045:Big Dig
1841:Hungary
1752:Sha Tin
1376:at the
1170:in the
1168:Linthal
1077:mattock
844:Norfolk
836:Ontario
816:borough
781:US Navy
753:Big Dig
684:removed
669:sources
630:Tunnel
574:In the
417:History
370:Finland
362:Tampere
295:Linings
187:weapons
145:traffic
127:portals
117:, Wales
7819:Mining
7790:(silo)
7768:Bunker
7697:Tunnel
7601:Grotto
7596:Cenote
7525:Portal
7432:Plaxis
7427:UTEXAS
7417:SVFlux
7407:SEEP2D
7259:Forces
7112:Trench
7060:Gabion
6870:Gravel
6510:Static
6354:Public
6313:Tunnel
6303:Skyway
6248:Bridge
6170:
6156:
6124:nrk.no
5654:
5330:
5211:
5201:
5193:
5152:
5144:
5100:
5092:
5057:
5049:
4988:7 June
4963:7 June
4937:7 June
4827:
4759:Imtech
4734:DW.COM
4261:
4253:
4106:
3928:
3874:
3847:
3723:Boston
3456:Sapper
3437:Taiwan
3419:Mining
3413:Mining
3385:Bogotá
3311:, and
3250:, and
3238:, and
3137:, U.S.
3135:Boston
3088:Lærdal
3058:France
3035:Honshu
2950:Ryfast
2940:Honshu
2770:, and
2764:Vienna
2659:1832,
2514:Dudley
2457:Turkey
2443:under
2393:Megara
2385:Greece
2351:Persia
2347:kareez
2090:fault.
1855:arches
1773:Line 7
1693:subway
1689:Queens
1663:Bertha
1447:Prague
1431:Perway
1268:stress
1230:Shafts
1226:(US).
1099:German
1016:roofed
1012:trench
1001:Line 4
870:. The
858:; the
826:; the
820:Queens
810:; the
637:stress
567:, the
554:Greece
523:qanats
483:mining
477:system
407:tonnel
281:Portal
267:Tunnel
195:people
161:sewers
147:, for
123:tunnel
104:Taiwan
7825:, and
7667:Fogou
7412:STABL
6885:Loess
6848:Types
6334:Arena
6283:Levee
6253:Canal
5328:S2CID
5277:(PDF)
5266:(PDF)
5150:S2CID
5098:S2CID
5055:S2CID
4627:(PDF)
4259:S2CID
4023:(PDF)
3699:Paris
3628:Sømna
3624:troll
3517:Egypt
3354:Tesco
3346:2008.
3198:folly
3031:Japan
2997:China
2872:year.
2810:metro
2795:Genoa
2791:Turin
2597:Wales
2512:, in
2425:Furlo
2402:Samos
2377:Samos
2366:siege
2343:qanat
1911:under
1852:steel
1848:brick
1802:flood
1762:Wuhan
1636:]
1617:]
1603:three
1460:near
1321:tools
1244:shaft
1204:China
1192:Spain
1178:, in
1052:metro
947:bonds
921:Italy
854:road
730:I-895
550:Samos
538:Judah
511:adits
411:tonne
337:Spoil
193:, or
153:canal
7712:Well
7591:Cave
7237:Deep
6880:Loam
6875:Peat
6865:Sand
6860:Silt
6855:Clay
6840:Soil
6542:Well
6298:Road
6168:ISBN
6154:ISBN
6132:2014
6105:2017
6097:NDTV
6077:2017
6048:2014
6022:2014
5996:2014
5949:2013
5923:2013
5893:2022
5865:2014
5843:link
5829:2024
5789:2024
5742:2014
5716:2014
5695:2014
5652:OCLC
5633:2014
5612:2014
5588:2013
5562:2014
5501:2015
5452:2014
5416:2013
5285:2014
5209:PMID
5191:ISSN
5142:ISSN
5090:ISSN
5047:PMID
4990:2020
4965:2020
4939:2020
4891:2024
4865:2011
4836:2018
4825:ISSN
4797:2016
4771:2024
4741:2024
4715:2024
4685:2024
4653:link
4639:2014
4610:2024
4562:2024
4536:2023
4506:2024
4455:link
4441:2024
4414:2018
4383:2024
4353:2013
4323:2013
4293:2010
4251:ISSN
4202:2013
4157:2013
4104:ISBN
4070:2024
4045:link
4033:(1).
4006:2024
3926:ISSN
3872:ISBN
3845:ISSN
3604:cave
3549:and
3487:and
3464:and
3390:The
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