The project:
LTF Lyon Turin Ferroviaire SAS
Railway tunnel underneath the Alps between France and Italy with a length of 52km.
Executing companies:
Spie Batignolles TPCI;
Ghella; Cogeis
CE2A (Tsurumi partner)
The problem:
Dewatering in the access gallery at La Praz. This has a length of 2,572m at a 12% incline.
The solution:
Implementation of type LH622 high-pressure pumps as a booster pump. Dewatering at the heading face is carried out using series KRS and KTZ pumps.
