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	Gotthard Base Tunnel - Wikipedia, the free encyclopedia
		The Gotthard Base Tunnel is a railway tunnel under construction in Switzerland.
		With a planned length of 57 km (35 miles) and a total of 153.5 km (95 miles) of tunnels, shafts and passages planned, it will be the longest railway tunnel in the world upon completion, ahead of the current longest, the Seikan Tunnel.
		The tunnel is part of the Swiss AlpTransit project, also known as 'New Railway Link through the Alps NRLA' which also includes the Lötschberg Base Tunnel between the cantons of Berne and Valais.
	en.wikipedia.org /wiki/Gotthard_Base_Tunnel (710 words)

	WikiMiki.net - Gotthard Rail Tunnel (Site not responding. Last check: 2007-11-04)
		Gotthard Tunnel and the Gotthard Rail Tunnel in the canton of Uri.
		The St. Gotthard Tunnel in Switzerland is the second longest road tunnel in the world (the longest is Lærdalstunnelen, 24505m).
		The widely used expressway tunnel was opened on September 5, 1980, in response to the automobile boom in Switzerland and the popularity of Italy as a travel resort.
	gotthard.rail.tunnel.en.wikimiki.net (720 words)

	Gotthard base tunnel
		Several tunnels are under construction, among them three from Zurich to the Gotthard tunnel and then to Lugano, and one in the western part of Switzerland.
		In 1982, a 17-kilometer road tunnel was built in the same area, to avoid the 2,100 meters high climb through the pass.
		The tunnels are reinforced with long Atlas Copco Swellex® rock-reinforcement bolts, and the roof and walls are being sprayed with concrete for safety.
	atlascopco.com /websites/acgroup/acgroup.nsf/docs/Gotthard+base+tunnel (588 words)

	Gotthard Base Tunnel
		The route requires several tunnels of which the Gotthard BaseTunnel is the main one with a length of 57 kilometers.
		Apart from tunnelling through the heart of the mountain massifs, the approaches to the tunnel require a great deal of specialist foundation construction works.
		Bauer is working at the most northerly section of the Gotthard Base Tunnel - the Erstfeld section to the South of Vierwaldstätter Lake - installing around 200 bored piles in diameters ranging from 1200 mm to 1500 mm for the northern approaches to the tunnel.
	www.bauer.de /en/presse/artikel/200507_gotthard.htm (493 words)

	Alptransit \| Aktuell
		Based on this commitment, since establishment and first certification of the quality management system in 1997, and integration of the environmental management system in 2000, systematic and continuous further development and extension into an integral management system has been firmly pursued.
		The accident occurred at 7.45 pm in the west tunnel of the Gotthard Base Tunnel.
		After the single-gripper tunnel boring machine with a diameter of 9.58 m and a weight in excess of 3,000 tonnes had been constructed, it was tested for acceptance at the manufacturers, then dismantled and transported in some 90,000 individual parts to Amsteg.
	www.neat.ch /pages/e/aktuell/pressemitteilung.php?jahr=2003 (4027 words)

	Putzmeister AG - Presseberichte, Nr. 1165 (Site not responding. Last check: 2007-11-04)
		The Joint Venture SATCO is driving under-ground a tunnel pipe from Mitholz to the north in the direction of Frutingen, and two pipes to the south.
		The Joint Venture is using a Putzmeister BRF 24-4.08 as well as a “Tunnel PUMA” of type BSF 18.09 for the concreting work at the Mitholz station which is positioned deep in the mountains, as well as for the concreting of the advance going away from it.
		At the Mitholz section, the M 24-4 and the ‘Tunnel PUMA’ are at first concreting the floor sections and the vaults of the drivage as well as the different formworks in the spacious area of the station.
	www.putzmeister.de /gb/news/presse/1165 (1029 words)

	Home - Lötschberg Base Tunnel (Site not responding. Last check: 2007-11-04)
		The Lötschberg Base Tunnel is a 34.6 km long tunnel currently being constructed, cutting through the Alps of Switzerland some 400 m below the level of the current Lötschberg Tunnel.
		Seikan Tunnel The route over or though the Gotthard Pass is one of the most important, if not the most important, passages through the Alps in Europe.
		The tunnel is part of the Swiss AlpTransit project, also known as 'New Railway Link throught the Alps NRLA' which also includes the Lötschberg Base Tunnel between the cantons of Berne and Valais.
	ltschberg.base.tunnel.en.infoax.org (3976 words)

	Alptransit \| Aktuell
		For the Gotthard Base Tunnel to open at the end of 2015, the start of construction in the Altdorf/Erstfeld area is of central significance.
		The project comprises approximately eight kilometres of base tunnel, construction of the underground branch-off for a future underground variant, the portal area, and the tracks for the overground section as far as the socalled "kink" at kilometre 98.2.
		The work involved in the Erstfeld-Amsteg Tunnel Lot comprises driving the two single-track tunnels of the 7.8-kilometers-long Gotthard Base Tunnel section from Erstfeld to Amsteg, excavation of 23 connecting galleries, and construction of the underground branch-off for subsequent implementation of the "Long underground" route.
	www.neat.ch /pages/e/aktuell/pressemitteilung.php?jahr=2006 (2448 words)

	6 - THE St GOTTHARD BASE TUNNEL
		In the north, the Aar massif has to be drilled, in the centre the Gotthard massif and in the south the penninic gneiss zone.
		Between the Aar and Gotthard massifs the Tavetsch and Urseren-Garvera zone are to be crossed.
		According to the latest results of exploratory borings, at the level of the base tunnel, massive dolomite marble is expected without water pressure, which will not present any problem to tunnel driving.
	www.ita-aites.org /cms/370.html (389 words)

	Dibit Messtechnik GmbH – measuring technique
		For testing purposes, a tunnel section of 60 m in lot 552 – Bodio at the Gotthard Base Tunnel was recorded and evaluated as regards undulation.
		The Bergen North Tunnel in New Jersey is a railway tunnel approx.
		Therefore it is necessary to enlarge the existing tunnel profile to the extent that there is sufficient space for the installation of the shotcrete lining.
	www.dibit-scanner.at /en/news1.htm (447 words)

	Gotthard Base Tunnel, Lot 554 Bodio, Lot 452 Faido, Ticino/Switzerland
		The Gotthard base tunnel on the NEAT (Neue Eisenbahn Alpen Transversale) a new high speed railway line crossing Switzerland from North to South shall be 57 km long after completion.
		The tunnel consists of two single track tubes, with a cross sectional area of approx.
		The tunnels of the two lots crossing mainly zones of Penninian, Leventinian and Lucomagno gneiss, with overburden more than 2,000 m and rock temperatures up to 40 °C. One fault zone, the so called Piora syncline, consisting of grinded dolomite rock has to be passed.
	www.alpine.at /en/branches/utb/tusptb/tu/11852.html (257 words)

	Gotthard Base Tunnel: Swiss Alps Transversale, World's Longest Railway Tunnel
		The plan foresees simultaneous headings of differing lengths from five points of attack, dividing the tunnel into five sections.
		Two variations were developed, based on different heading techniques, one using the tunnel building machine, and the other traditional blasting.
		Tunnel Building Unit called GABI - with 440 m the largest machine of the world: The first of a total of 4 tunnel building machines for the Gotthard Railway Tunnel in the Herrenknecht AG Manufacturing Shop, awaiting delivery.
	www.lucerneworldclass.ch /pages/04_gotthard.html (173 words)

	Gotthard Base Tunnel
		With the installation of up to 61.2 m long 4.75 m diameter tubular steel monopile foundations weighing up to 452 tonnes in water depths ranging between 21 and 23 m, the Barrow Offshore Wind Farm is clearly at the cutting edge of offshore wind developments.
		All offshore construction work including installation of the monopile foundations for the wind turbines and offshore sub-station, erection of the turbine towers and installation of the nacelles and rotor blades is carried out by Marine Projects International Ltd. (MPI) based in Middlesbrough, Cleveland, from their purpose-built jack-up turbine installation vessel TIV Resolution.
		The pile bore must, therefore, be advanced a sufficient distance ahead of the pile toe to enable stress release to occur enabling the annulus under the base of the pile to be displaced during subsequent driving.
	www.bauer.de /en/presse/artikel/200510_flydrill.htm (383 words)

	Subterranea of Switzerland: Gotthard Basistunnel
		Even for the first Gotthard railroad the tunnel is the central project.
		The main reason to build the first tunnel was the problem to gain the necessary height for the pass.
		The base tunnel connects two low valleys with a high speed rail tunnel, suitable for speeds of 250 km/h.
	www.showcaves.com /english/ch/misc/GotthardBasis.html (533 words)

	Alptransit \| Project Alptransit Gotthard (Site not responding. Last check: 2007-11-04)
		AlpTransit Gotthard is the construction project of the century.
		During construction of the Gotthard Base Tunnel (excluding the Ceneri Base Tunnel) additional investment costs arise mainly in relation to safety and the technical state of the art as well due to politically caused delays and phasing under the law for financing public transportation.
		Relative to the cost estimate of CHF 6,323 million based on the scope of construction of the Gotthard Basis Tunnel originally assumed by the Swiss Federal Government, according to present knowledge additional costs of CHF 1,712 million will arise.
	195.186.60.194 /pages/e/projekt/kosten.php (414 words)

	Google Earth Hacks - File Downloads - Trains/Subways - Gotthard base tunnel
		Description: The Gotthard Base Tunnel is a railway tunnel under construction in Switzerland.
		The tunnel is part of the Swiss AlpTransit project, which also includes the Lötschberg base tunnel between the cantons of Berne and Valais.
		Like the Lötschberg tunnel, it is intended to bypass winding mountain routes and establish a direct route suitable for high speed rail.
	www.googleearthhacks.com /dlfile7421/Gotthard-base-tunnel.htm (272 words)

	Tunnel Under the Alps \| Gadgetopia (Site not responding. Last check: 2007-11-04)
		Gotthard Base Tunnel: I’m watching Extreme Engineering right now.
		They’re talking about the problems with working underground, and the foreman is quoted as saying, “The biggest problem is the lack of oxygen.” Uh, yeah, that would be a problem.
		Interesting fact: the 24 million tons of rock they excavate is turned into concrete at one of five concrete plants built at the openings to the work tunnels.
	www.gadgetopia.com /post/4975 (320 words)

	Alptransit \| Home
		61.3 percent of the Gotthard Base Tunnel excavated
		On June 1, 2006, of the total of 153.5 km of tunnels, galleries and passages of the Gotthard Base Tunnel, 94.1 km or 61.3% had been excavated.
		The total amount driven in May 2006 was 1,870 metres.
	www.alptransit.ch /pages/e (219 words)

	Structurae [en]: Gotthard Base Tunnel (2011)
		Herrenknecht liefert Bohranlage für den längsten Tunnel der Welt, in "GEOLEX", September 2002, n.
		Merzagora, Eugenio A. Il traforo di base del San Gottardo, in "Strade e Autostrade", March - April 2005, n.
		Zbinden, Peter Tunnel de base du Saint-Gothard, in "Tunnels et Ouvrages Souterrains", July 2005, n.
	en.structurae.de /structures/data/index.cfm?id=s0000842 (195 words)

	IUT Tunnelling 2002 - exhibition Switzerland (Site not responding. Last check: 2007-11-04)
		Stage reached by the Base Tunnel Projects in Switzerland:
		The Sedrun intermediate Point-of-Attack for the Gotthard Base Tunnel
		Heading Methods applied in the Gotthard Base Tunnel
	www.iut.ch /iut_99/seminar_en.html (50 words)

	Moergeli Archives
		Selection of Pictures, courtesy of Theodor STALDER and Marc GISLER, Lot 360, Tunnel Sedrun, AlpTransit, Gotthard Base Tunnel, Switzerland, for Diploma as SWISS Safety + Health Engineer EigV/BSV [German only], 10/31/2002 + 11/01/2002
		Victor S. NN - thank you very much, Rapid Excavation and Tunneling Conference (RETC), Seattle, WA-USA, June 27 - 29, 2005 - including pictures from the author's work at Beacon Hill Tunnel during that time
		Selection of Pictures by Alfred MOERGELI, Los 554, Tunnel Bodio, AlpTransit Construction, Gotthard Base Tunnel/SWITZERLAND, CE Conformity of Hard Rock Tunneling System [see our European CE Conformity presentation]
	www.moergeli.com /archive.htm (701 words)

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