Switzerland
Switzerland

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Rockfall Protection - Amden 2011

The bags are placed

Rockfall Protection - Amden 2011

Endangered area

Rockfall Protection - Amden 2011

The gallery is covered the damping system

Rockfall Protection - Amden 2011

Modules are delivered by helicopter directly on the gallery

 
 

Year of installation

2011

Initial situation

The Swiss National Road No. 17 between Weesen and Amden was endangered by stone and block striking. Between autumn 1978 and August 1981 the  Mattstock Gallery with a length of 110 meters and the Churfirsten Gallery with a length of 155 meters were created.

After various rockfall events and activities the danger situation of the whole street section was checked. The static calculation showed that the two galleries would only cover energies of 300 to max. 500 kJ as standard.

Based on a risk assessment, it was decided to fortify the two galleries for the scenario with a probability of a recovery period of 10 to 30 years with energies of 200 to 1'900 kJ.

Description

ROCKFALL-X G Damping system with cellular glass fill material and TECCO® mesh as protection for the rockfall galleries Mattstock and Churfirsten.

Modules: 1’300 pieces 1,3 m und 575 pieces 2,0 m heigh cellular glass filled ROCKFALL-X G damping modules.

Rockfall energies: 200 kJ to 1‘900 kJ.

Country/Region

Switzerland

Customer

Tiefbauamt des Kantons St. Gallen, Abteilung Strassen- und Kunstbauten

Engineering

Casutt Wyrsch Zwicky AG

Contractor

Locher Bauunternehmer AG, Zürich, Switzerland

Protected object

Road

Your local contact

René Müller
   

René Müller

Country Manager Western Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Monitoring
Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Western Switzerland

E-Mail

Olivia Sartorius
   

Olivia Sartorius

Project Manager Sales Eastern and Central Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Monitoring
Geobrugg AG Project Manager Sales Eastern and Central Switzerland

E-Mail

Matthias Denk, Msc. Env. Eng.
 

Matthias Denk

Natural Hazards
Hydraulic Engineering
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Switzerland , Msc. Env. Eng.

E-Mail

Isacco Toffoletto
   

Isacco Toffoletto

Country Manager Southern Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Monitoring
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Switzerland Country Manager Southern Switzerland

E-Mail