These moulded walls will gradually form the perimeter of the underground structure.
To achieve this, one of the project's three concrete plants has been commissioned at the Sept Deniers - Stade Toulousain station. It will produce 310,000 m3 of concrete (i.e. 60 m3 per hour) for the foundations and civil engineering work.
Ultimately, more than 1,400 people will be working on this project to build 12.7 km of tunnel, 9 stations, 10 service structures and 1 branch structure.
Consortium: Eiffage Génie Civil (leader), NGE GENIE CIVIL, NGE FONDATIONS, Béton Solutions Mobiles, Groupe Vicat for Tisséo Collectivités and Tisséo Ingénierie.