Concept’o is Engineer Consultant integrated into the DENYS/LMR/CONCEPT’O consortium for the Design and Build Contract (EPC): River crossing under the “Loire” for Atlantic Eau (Installation of a DN600mm Steel Pipe iver 1200 meters long).
The technique chosen is Microtunneling boring machine (AVN1800).
Phasing:
* Contractual process (EPC contract: detailed design): June 2022 to December 2022
* Contract signature: January 2023
* Realization of the attack shaft: March/April 2023
* Drilling of the gallery (Concrete Tube internal diameter 1800 mm) on 1150 ml: In progress since May 2023