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Tunnel surveys
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Solutions for Engineering - Tunnel surveys |
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Whether tunnels service rail networks or road vehicles, and whether they travel underground, under water or through mountains, instruments and solutions from Leica Geosystems provide accurate measurements and safe monitoring.
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(Reporter 51, August 2004) Boston's massive BigDig project has taken
advantage of numerous technology innovations
during its 15-year life. The latest technology success
story is the project's use of Leica Geosystems' highdefinition
surveying (laser scanning) systems. plus
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(Reporter 50, April 2004)
The Alp Transit Gotthard is an ambitious railway construction project, which will incorporate the world's longest railway tunnel of 57 km travelling through the Swiss Alps and under the St. Gotthard massif. Future passenger trains will journey at speeds of up to 250 km/h, adding further to the highly successful European high-speed network and bringing a huge reduction in travelling time. The combined surveying systems of
Leica Geosystems and Amberg Measuring Technique Ltd are greatly assisting the tunnel workers in their day-to-day work - not only reducing time needed to ensure that excavation is correctly undertaken, but also making
the whole construction process much more efficient and accurate. plus
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The project for the construction of tunnels as part of the new extension of Prague’s Underground was faced with certain space limitations due to the location of an existing station. In addition, the particularly rough terrain in the area had considerable influence on the position of the planned station. At the place of crossing, the line is located at a depth of only one metre under the riverbed of the Vlatava. This minimal depth of the overlaying formation prevents the use of the tunnelling method, and therefore there remains only one “classical“ method of construction – cofferdams. It was decided to use three cofferdams for the tunnel crossing situated in the Vlatava stream channel. plus
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In the lower Emmental, this 1.6 kilometre-long tunnel is being built below the River Emme. It is part of the Bahn2000 new construction section that will allow travel from Bern to Zurich. Using automated steering with a
3D-Machine Guidance System of Leica Geosystems, shoulders have now been laid in the biggest “Emmentaler Hole”. plus
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Tough times for a LEICA TCA1700 series instrument: measuring boreholes in a man-made ice cavern at a tunnel construction site at Kingston-upon-Hull in north-west England. plus
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Leica survey instruments in Sydney also used underground on major environmental protection projects. plus
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Geodetic surveys of Vereina Tunnel - Switzerland plus
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In the midst of harsh terrain, surveyors in astronaut-like garb stake out the route for a new gas pipeline. Determining their position
in real-time with the aid of satellites and the Leica MC1000 and SR 9500, they perform the groundwork for one of the largest-ever land based pipeline projects. plus
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The subway is perhaps in many cases the epitome of a nation's transport system. plus
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With 340 points within the tunnel, the Leica TCA2003 Automated total station will measure for you -24 hours a day. plus
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