Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg
Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg
Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg
Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg
Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg
Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg Kerenzerberg, Highway A3, Glarus Nord 2015 - Geobrugg

Kerenzerberg, Highway A3, Glarus Nord

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Rua
Gäsi
Código postal
8757
Lugar
Filzbach
País / Região
Suíça
Ano de instalação
2015
Cliente
FEDRO Federal Roads Office, Switzerland
Engenharia
Project Partners Ltd Consulting Engineers, Grancia-Lugano, Switzerland
Contratante:
CRESTAGEO, Chur, Switzerland
Objecto protegido
Estrada, Caminho de ferro
Sistemas
RXE-500, RXE-1000, RXE-3000, RXE-8000
Absorção de energia máxima
3000 kJ, 500 kJ, 1000 kJ, 8000 kJ
Altura do sistema
2.5 m, 3.0 m, 4.0 m, 5.0 m, 7.0 m
Comprimento do sistema
14 m - 62 m
Protecção contra a corrosão
Galvanizado, GEOBRUGG SUPERCOATING®
Outras aplicações instaladas
Estabilização de taludes
Situação inicial

Highway A3 was opened in 1964 as a 2-lane road passing through the topographic bottleneck of the Walensee. The Walensee is one of the main thoroughfares between the Swiss plains and the mountainous regions and ski resorts. The roadway has always been exposed to rockfall and rockslides from the beginning. In 1986, due to increased traffic volume, one of the most frequented tunnels was expanded to four lanes. Naturally, geohazard protection measures were required to be installed along with the roadway expansion.

In 2012 it became apparent to the Swiss Federal Roads Office FEDRO that several hot spots for geohazards would require immediate maintenance to keep Highway A3 open. The identified hot spots include various tunnel entrances, steep slopes and sheer rock faces along the roadway. The project planning phase began in 2013, and by the end of 2015 the first protection systems of Geobrugg’s newest generation were installed.

Official project name at the FEDRO, Federal Office for Roads: Glarus Nord

Overall costs of the protection project (estimated in 2014): 11 Mio. Swiss Francs

Descrição

This description only details the northwest oriented tunnel entrances of Ofenegg and Kerenzerberg.

The overall project included a portfolio of Geobrugg flexible barrier systems protection measures to contain rockfall events. The selection was based on extensive rockfall analysis, taking into account bouncing heights as well as energy impacts. System strength, height and line lengths were set to maximize safety and optimize cost-effectiveness.

Above the two tunnel entrances the following Geobrugg rockfall protection systems were installed in geographical order from southwest to northeast:

  • Barrier 1 :   RXE-500, height 3 m, length 31 m
  • Barrier 2 :   RXE-500, height 3 m, length 26 m
  • Barrier 3 :   RXI-150, height 4 m, length 55 m
  • Barrier 4 :   RXI-025, height 2.5 m, length 14 m
  • Barrier 5 :   RXE-1000, height 4 m, length 25 m
  • Barrier 8b : RXI-150, height 4 m, length 17 m
  • Barrier 8c : RXE-1000, height 4 m, length 25 m
  • Barrier 9 :   RXE-8000, height 7 m, length 62 m
  • Barrier 10 : RXE-3000, height 5 m, length 50 m

More information:
Movie of the 2015 RXE-8000 installation
Slope protection of this site "Muehlehorn"

O seu contacto local

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Riscos naturais
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / Estados Unidos
Telefone +1 860 377 3230

Formulário de contacto

Saleh Feidi
Saleh Feidi
Regional Manager California
Riscos naturais
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / Estados Unidos
Telefone +1 909 706 8964

Formulário de contacto

John Kalejta
John Kalejta
Regional Manager Central US
Riscos naturais
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / Estados Unidos
Telefone +1 505 220 1404

Formulário de contacto

Bob Lyne
Bob Lyne
Regional Manager Southeast
Riscos naturais
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / Estados Unidos
Telefone +1 336 337 0945

Formulário de contacto

Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Riscos naturais
Geobrugg North America, LLC
22 Centro Algodones
Telefone +1 505 771 4080
Telemóvel +1 505 400 0796

Formulário de contacto

Tim Shevlin
Tim Shevlin
Sales Director
Riscos naturais
Geobrugg North America, LLC
4676 Commercial St. SE, PMB 174
Salem OR 97302 / Estados Unidos
Telefone +1 503 423 7258

Formulário de contacto