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Prevenção de avalanches - Geisshorn-Arensa snow nets 2012

Overview of the Geisshorn snow nets covered partially by snow, directly under the rockface

Prevenção de avalanches - Geisshorn-Arensa snow nets 2012

Snow nets are installation friendly thus allow a considerable reduction of helicopter hours

Prevenção de avalanches - Geisshorn-Arensa snow nets 2012

Another view of the helicopter transport and beautiful valley in the back

Prevenção de avalanches - Geisshorn-Arensa snow nets 2012

Modular and lightweight structure allows fast and easy installation. All elements were pre-assembled in the valley first

Prevenção de avalanches - Geisshorn-Arensa snow nets 2012

Pressure plates are a perfect solution for areas with permafrost since they do not require a concrete foundation with anchoring. The picture shows the retaining ropes. Such scheme allows perfect plate positioning and further ground movements

Prevenção de avalanches - Geisshorn-Arensa snow nets 2012

Thanks to modular structure snow nets perfectly follow irregular terrain profile. Short sections follow the structure of the ground

Prevenção de avalanches - Geisshorn-Arensa snow nets 2012

Overview of snow nets installed directly under the rockface. Here rockfall capacity is a must and an enormous advantage of Geobrugg's flexible snow net structures

Prevenção de avalanches - Geisshorn-Arensa snow nets 2012

Our specialists are continuously monitoring installed solutions, here during winter period. Geobrugg wishes nice skiing in Switzerland!

 

Sistemas

Diagonal wire rope nets

 

Comprimento do sistema

- 1890 m

 

Ano de instalação

2012

Situação inicial

In winter 1999 (well remembered in the Alps for extraordinary snowfall and avalanches) National Road 28, to the ski resorts of Klosters and Davos, had to be closed. The inital location of those avalanches was the perimeter of this project. 

Descrição

To ensure that avalanches of such scale and influence would not emerge from the Geisshorn mountain, the Federal Roads Office (ASTRA) and the Forest and Natural Hazards Office of the canton Grison, (AWN) entrusted the engineering company of Tur GmbH, to plan a mitigation solution. Due to its location, under the rockface where  little rockfall is possible, Tur GmbH decided to use Snow Nets rather than rigid steel structures. This led to the installation of nearly 2000 [m] of Geobrugg avalanche protection barriers (so called Snow Nets).

Promotor

Swiss Federal Road Office (ASTRA) / Tiefbauamt Graubünden

Empreteiro

Tur GmbH, Davos

Contratante

Bauunternehmung Vetsch Klosters AG

Objecto protegido

Estrada, Edifício

Proteção contra a corrosão

Galvanizado, GEOBRUGG SUPERCOATING

O seu contacto local

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

Riscos naturais
Engenharia Hidráulica
Mineração / Túneis
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Suíça Country Manager Ost- und Zentralschweiz, Liechtenstein

E-mail

René Müller
   

René Müller

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

Riscos naturais
Engenharia Hidráulica
Mineração / Túneis
Geobrugg AG,Industriestrasse 21,5200 Brugg / Suíça Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Riscos naturais
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Suíça Project Manager Inspection Services

E-mail

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

Riscos naturais
Engenharia Hidráulica
Mineração / Túneis
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Suíça Ticino Country Manager

E-mail