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Tunnel Hole-through
Tunnel hole-through, also called breakthrough, is the time, during the construction of a tunnel built from both ends, when the ends meet, and the accuracy of the survey work becomes evident. Many tunnels report breakthroughs with an error of only a few inches, for example: * the 1858 Blue Ridge Tunnel – * the 1944 Blue Ridge Tunnel replacement – - 1944 * the Lötschberg Base Tunnel – 10 cm *the Holland Tunnel - 1 cm See also * Cascade Tunnel The Cascade Tunnel refers to two railroad tunnels (original and its replacement) in the northwest United States, east of the Seattle metropolitan area in the Cascade Range of Washington, at Stevens Pass. It is approximately east of Everett, wi ... References External links *Gautrain tunnel breakthrough***- 10 cm Tunnel construction {{Rail-transport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TBM S-210 Alptransit Faido East
TBM may refer to: * Technology business management, a methodology for managing IT departments * Socata TBM, a family of single engine turboprop aircraft * Tactical ballistic missile * Theatre ballistic missile * Grumman TBM Avenger, a torpedo bomber * Tracheobronchomalacia, a condition affecting the trachea * Transferable belief model, a mathematical theory on uncertainty * Tunnel boring machine, used to excavate tunnels with a circular cross section * Transports Bordeaux Métropole, a French public transport system * Trailing bit manipulation, a type of bit manipulation instruction set * '' Tuberculomucin Weleminsky'', a treatment for tuberculosis * tert-Butylthiol, also known as ''tert''-butyl mercaptan Music and entertainment: * The Birthday Massacre, a Canadian synth-rock band * The Beautiful Music, a Canadian indie record label * Three Blind Mice, a Japanese record label * Techno Body Music, genre similar to Electronic body music Electronic body music (acronymized to EBM) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Ridge Tunnel
The Blue Ridge Tunnel (also known as the Crozet Tunnel) is a historic railroad tunnel built during the construction of the Blue Ridge Railroad in the 1850s. The tunnel was the westernmost and longest of four tunnels engineered by Claudius Crozet to cross the Blue Ridge Mountains at Rockfish Gap in central Virginia. At in length, the tunnel was the longest tunnel in the United States at the time of its completion. The tunnel was used by the Virginia Central Railroad from its opening to 1868, when the line was reorganized as the Chesapeake and Ohio Railroad (renamed Chesapeake and Ohio Railway in 1878). The Chesapeake and Ohio routed trains through the tunnel until it was abandoned and replaced by a new tunnel in 1944. The new tunnel was named the "Blue Ridge Tunnel" as well, although the original tunnel still remains abandoned nearby. The old Blue Ridge Tunnel has since been named a Historic Civil Engineering Landmark by the American Society of Civil Engineers in 1976. In l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lötschberg Base Tunnel
, line = Lötschberg Line , location = Traversing the Bernese Alps in Switzerland , coordinates = – , system = BLS, SBB CFF FFS , status = , start = Frutigen, canton of Bern, , end = Raron, canton of Valais, , stations = , startwork = 5 July 1999 , opened = 14 June 2007 , closed = , owner = BLS NETZ AG , operator = BLS , traffic = Railway , character = Passenger, Freight , length = , linelength = , tracklength = , notrack = One single-track tube for 20km, two single-track tubes for 14km , gauge = (standard gauge) , el = 15 kV 16.7 Hz , speed = , hielevation = , lowelevation = (south portal) , height = , grade = 3–13 ‰ , map = The Lötschberg Base Tunnel (LBT) is a railway base tunnel on the BLS AG's Lötschberg line cutting through the Bernese Alps of Switzerland some below the existing Lötschb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holland Tunnel
The Holland Tunnel is a vehicular tunnel under the Hudson River that connects the New York City neighborhood of Hudson Square in Lower Manhattan to the east with Jersey City in New Jersey to the west. The tunnel is operated by the Port Authority of New York and New Jersey, and carries Interstate 78; the New Jersey side is also designated the eastern terminus of Route 139. The Holland Tunnel is one of three vehicular crossings between Manhattan and New Jersey; the two others are the Lincoln Tunnel and George Washington Bridge. Plans for a fixed vehicular crossing over the Hudson River were first devised in 1906. However, disagreements prolonged the planning process until 1919, when it was decided to build a tunnel under the river. Construction of the Holland Tunnel started in 1920, and it opened in 1927. At the time of its opening, it was the longest continuous underwater vehicular tunnel in the world. The tunnel was originally known as the ''Hudson River Vehicular Tunne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cascade Tunnel
The Cascade Tunnel refers to two railroad tunnels (original and its replacement) in the northwest United States, east of the Seattle metropolitan area in the Cascade Range of Washington, at Stevens Pass. It is approximately east of Everett, with both portals adjacent to Both single-track tunnels were constructed by the Great Northern Railway. The first was in length and opened in 1900 to avoid problems caused by heavy winter snowfalls on the original line that had eight zig zags ( switchbacks). The current tunnel is in length and entered service in early approximately south of and lower in elevation than the original. The present east portal is nearly east of the original's and is at above sea level, below the pass. The tunnel connects Berne in Chelan County on its east with Scenic Hot Springs in King County on its west and is the longest railroad tunnel in the United States. History Original tunnel The first tunnel began construction on August 20, 1897, and was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
