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Renovation of the Mont Blanc Tunnel vault

Protección contra impactos - Renovation of the Mont Blanc Tunnel vault 2024

The ROCKFALL-X A system absorbs rock falls from the vault over the entire width of the tunnel; the decking is easily cleared thanks to the metal plate installed at the top

Protección contra impactos - Renovation of the Mont Blanc Tunnel vault 2024

The system consists of three layers of recycled tires, with layers of TECCO® G65/3 mesh between them

Protección contra impactos - Renovation of the Mont Blanc Tunnel vault 2024

Metal plate on top of the ROCKFALL-X A system, covered with rocks

 

Año de instalación:

2024

Situación

The Mont-Blanc Tunnel is 60 years old and one of Europe’s major tunnels, which needs renovation work to ensure its long-term survival. With this in mind, the first test phase of work in autumn 2024 determined the methodologies for future project phases. Renovation of the Mont-Blanc Tunnel vault will involve removing the existing lining, as the resulting boulder falls will bring too much energy to bear on the running slab and could damage it.

Descripción

Based on the data provided by Setec, we worked together to justify and supply a ROCKFALL-X A solution to cushion these falling boulders and protect the running slab. As the site was mobile and operated in a confined environment, the ROCKFALL-X A system was combined with a metal decking that could be drained and moved quickly by site machinery.

País / Región

Francia

Cliente

Tunnel du Mont Blanc - GEIE

Ingeniería:

Setec

Subcontratista:

Spie Batignolles

Objeto protegido

Carretera, Cantera/ Mina

Su contacto local

Ivo Naef
 

Ivo Naef

Director Industry Solutions

Protección contra impactos
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Suiza Director Industry Solutions

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