myGeobrugg
Situation
The entrance of the historic Tunnel des Pontis was endangered by rockfalls.
Description
The flexible rockfall canopy – at present the world’s strongest, with an energy absorption capacity of 2000 kJ – was installed at an approximately 60 m long rockface at the Tunnel des Pontis. The supporting structure calculations including special load cases such as boundary field hits, suspension rope hits and snow load were fully simulated on a computer using the FARO software. A total netting coverage of 1200 m² was installed. Lengthening the existing tunnel would have cost eight times more than Geobrugg’s solution.
Customer
Association intercommunale d’Anniviers
Contractor
Sébastien Chéseaux Paravalanches SA
Protected object
Road
Corrosion protection
Galvanized, GEOBRUGG SUPERCOATING
Engineering
Nivalp SA / Geobrugg AG
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