Results for Construction technology

1846

An iron road made of steel

The rail is not a standard design: it goes through multiple variants in the course of its development.

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26 November 2000

Geology and surveying

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

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5 September 2006

Breakthrough in the Gotthard

The Gotthard Base Tunnel is the centrepiece of the NRLA. The first breakthrough by a boring machine takes place in the east bore.

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14 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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22 August 2013

A million visitors

During construction of the Gotthard and Lötschberg Base Tunnels, the general public have an opportunity to view the inside of the mountain. Huge numbers do so.

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30 October 2014

Rock meets concrete

The Gotthard Base Tunnel is a high-tech product – and, like every tunnel, the result of much hard graft: by labourers, masons and concrete layers.

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30 September 2015

Tests on the Gotthard

There is a lot of technology in the new Gotthard line. Extensive tests are carried out to ensure it works properly.

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2015

Tunnels of the world

Whose tunnel is the longest? Tunnel construction is a never-ending competition for the world record.

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31 December 2016

Mind the doors

The escape doors installed in the Gotthard tunnel are the best there is. They owe their construction to the NRLA. One major innovation led to multiple minor innovations.

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2019

Escher forever?

The Gotthard line comes about thanks to Basel politics, new tunnel construction technology and an international consensus. Escher’s influence is overestimated.

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