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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

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

Subcontractor

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
Monitoring
Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Western Switzerland

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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

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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

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