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Double Breakthrough Connects the Brenner Base Tunnel Beneath the Alps
Both main tubes of the Brenner Base Tunnel have broken through at the Austria-Italy border, about 1,400 meters below the Brenner Pass. […]
alps
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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 […]
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Just 10m of drill and blast left on Gotthard Base Tunnel
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 […]
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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 […]