Results for Construction technology
An iron road made of steel
The rail is not a standard design: it goes through multiple variants in the course of its development.
View eventGeology and surveying
Tunnel construction depends on scientific knowledge. Geology helps to find ways through the rock.
View eventBreakthrough 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.
View eventTraversing the Piora Basin
The Piora Basin, with its sugar-grain rock, threatens to endanger construction of the Gotthard Base Tunnel.
View eventA 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.
View eventRock 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.
View eventTests on the Gotthard
There is a lot of technology in the new Gotthard line. Extensive tests are carried out to ensure it works properly.
View eventTunnels of the world
Whose tunnel is the longest? Tunnel construction is a never-ending competition for the world record.
View eventMind 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.
View eventEscher 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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