Construction of a safety tunnel in the Meudon rail tunnel
French rail network operator SNCF Réseau has awarded a consortium made up of Bessac (leader), Chantiers Modernes Construction and Soletanche Bachy France (all VINCI Construction companies) with the contract to build this safety feature on line C of the RER Paris expressway.
This involves several elements:
· Special works at the tunnel mouth: nailing, shotcrete, piles, grouting
· A tunnel 1700m long with an internal diameter of 3.50m, dug by an Earth Pressure Balanced TBM specially manufactured for this project by Bessac
· Two connecting branches with the SNCF tunnel, dug using NATM methods
· A technical facility
Work on this latest one is scheduled to start in February and run for two years.