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Crowds celebrate the opening of the Gotthard Base Tunnel
Project Related

Gotthard tunnel, world’s longest, opens in Switzerland

June 6, 2016 rockman Comments Off on Gotthard tunnel, world’s longest, opens in Switzerland

The Swiss and many other European dignitaries celebrated the opening of the World’s longest and deepest tunnel last week, the Gotthard Base Tunnel, after 17 years of construction. The tunnel beneath the Swiss Alps is […]

TBM with twin tunnels of the Gothard Base Tunnel or GBT, Sedrun segment
Project Related

Just 10m of drill and blast left on Gotthard Base Tunnel

October 11, 2010 rockman 1

This 57-km tunnel under the Swiss Alps has nearly broken through after 11-years of work. This tunnel will create a ‘flat’ rail path through the Alps and become the world’s longest rail tunnel. [Source: World […]

Surveyors working in the Gotthard Base Tunnel, longest tunnel in the world.
Project Related

Building the world’s longest tunnel tests advanced surveying technologies

June 17, 2010 rockman Comments Off on Building the world’s longest tunnel tests advanced surveying technologies

The Gotthard Base Tunnel will eventually be a 35-mile rail tunnel through the famed Alps in southern Switzerland. So what does it take to survey the world’s longest tunnel? How about setting some 7,000 points […]

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