Suiza
Suiza

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Protección contra caídas de rocas - Tunnel des Pontis 2010

Rockfall canopy for 2000 kJ with self cleaning effect, protecting Tunnel des Pontis portal area

Protección contra caídas de rocas - Tunnel des Pontis 2010

Overview of the situation before installation - visible slope with rockfalls up to 2000 kJ of dynamic energy, endangering cantonal road below

Protección contra caídas de rocas - Tunnel des Pontis 2010

Designing this unique rockfall canopy, Geobrugg specialists used also simulation software FARO, allowing the structure not only to be 100 percent safe but also have certain self cleaning effect

Protección contra caídas de rocas - Tunnel des Pontis 2010

Portal area before canopy installation

Protección contra caídas de rocas - Tunnel des Pontis 2010

Rockfall canopy installation required temporary road closure and involved rope access works. Total installation time of two months is short compared to other solutions like concrete gallery

Protección contra caídas de rocas - Tunnel des Pontis 2010

The working gallery shows the rockfall threat, not only from big boulders but also from huge amounts of smaller rocks

Protección contra caídas de rocas - Tunnel des Pontis 2010

The installed canopy protects the road.

 

Sistemas

 

Longitud del sistema

- 61 m

 

Año de instalación

2010

Situación inicial

The entrance of the historic Tunnel des Pontis was endangered by rockfalls.

Descripción

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.

Cliente

Association intercommunale d’Anniviers

Ingeniería

Nivalp SA / Geobrugg AG

Subcontratista

Sébastien Chéseaux Paravalanches SA

Objeto protegido

Carretera

Protección contra la corrosión

Galvanizado, GEOBRUGG SUPERCOATING

Su contacto local

René Müller
   

René Müller

Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

Protección contra riesgos naturales
Ingeniería hidráulica
Minería / Túneles
Geobrugg AG,Industriestrasse 21,5200 Brugg / Suiza Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

Correo electrónico

Olivia Sartorius
   

Olivia Sartorius

Protección contra riesgos naturales
Ingeniería hidráulica
Minería / Túneles
Geobrugg AG

Correo electrónico

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Protección contra riesgos naturales
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Suiza Project Manager Inspection Services

Correo electrónico

Isacco Toffoletto
   

Isacco Toffoletto

Protección contra riesgos naturales
Ingeniería hidráulica
Minería / Túneles
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Suiza

Correo electrónico