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Ligne Montréjeau-Luchon - Reprofilage du tunnel Cap du Mail

Mining: Underground & Open Pit - Ligne Montréjeau-Luchon - Reprofilage du tunnel Cap du Mail 2024

The renovated tunnel, secured with a system of rock bolts and mesh.

Mining: Underground & Open Pit - Ligne Montréjeau-Luchon - Reprofilage du tunnel Cap du Mail 2024

Tunnel re-profiling using a tunnel saw

Mining: Underground & Open Pit - Ligne Montréjeau-Luchon - Reprofilage du tunnel Cap du Mail 2024

Additional local re-profiling using a hydraulic rock breaker

Mining: Underground & Open Pit - Ligne Montréjeau-Luchon - Reprofilage du tunnel Cap du Mail 2024

Installation of MINAX G80/3 mesh, protecting against falling debris

 
 

Year of installation

2024

Initial situation

As part of the rehabilitation work on the Montréjeau-Luchon railroad, the Cap du Mail tunnel needed to be reprofiled to allow the passage of the new trains, which are wider than the old ones.

Description

The new clearance profile for this 70-meter tunnel was achieved by cutting back the tunnel by an average of 20 cm. Subsequently, a safety system for future rail traffic was installed using a combination of rock bolts and MINAX mesh.

Country/Region

France

Customer

La Région Occitanie

Engineering

Société Alpine de Géotechnique

Contractor

NGE Fondations

Other participating companies

Alsacienne de minage et démolition

Protected object

Railway

Your local contact

René Müller
   

René Müller

Country Manager Western Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Asset Management / Monitoring
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Switzerland Country Manager Western Switzerland

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Olivia Sartorius
   

Olivia Sartorius

Country Manager Eastern and Central Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Asset Management / Monitoring
Geobrugg AG Country Manager Eastern and Central Switzerland

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Isacco Toffoletto
   

Isacco Toffoletto

Country Manager Southern Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Asset Management / Monitoring
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Switzerland Country Manager Southern Switzerland

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