TURIN. The construction site opens in France where, from mid-2022, 23 kilometers of the double-tube maxi-tunnel of the new Turin-Lyon railway will be excavated, which in total will measure 57.5 kilometers. This morning, the group of companies awarded the contract (the agent Vinci Construction Grand Projects, Dodin Campenon Bernard, Vinci Constructions France TP Lyon, WeBuild) installed itself on the La Praz construction site, in the Municipality of Saint André in Maurienne. Among the preliminary acts, the formal commitment of the companies to respect the Mission 5 protocol “which strengthens and systematises the supervision of safety in the workplace” in infrastructure construction sites.
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Three milling cutters will be used for the excavation and the traditional method will be used in the more geologically complex sections. The safety site of la Praz will also be built, the communication branches every 333 meters between the tunnels, the technical rooms, the niches and the tunnels for operation and safety. In total, approximately 65 months of work are planned for an amount of 1.43 billion euros and a commitment of over 1,000 workers. 6 French municipalities are concerned.
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In the next few days, the construction site for the section of the tunnel between the French entrance portal at Saint-Julien-Montdenis and Saint-Martin-la-Porte will also be started, headed by the grouping led by Implenia Suisse.