Results for Geology

4 October 1993

Work begins

The NRLA is far more than just the Gotthard Base Tunnel, but the first exploratory boring for the NRLA project takes place at the Gotthard.

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27 November 2000

Geology and surveying

Tunnel construction depends on scientific knowledge. Geology helps to find ways through the rock.

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15 October 2008

Traversing the Piora Basin

The Piora Basin, with its sugar-grain rock, threatens to endanger construction of the Gotthard Base Tunnel.

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