The enterprise is integrated in a bauxite mines expansion project in Northern Guinea and includes the execution, in a port area, of a bleed-off shaft, for this kind of minerals, from railway wagons to conveyor belts intended to load ships.

Work description:

Execution of the round shaft (48 m in diameter) and trench (127 m in length) in diaphragm wall (1 m thick), and treatment of joints together with Jet Grouting. Excavation work (25 m deep), foundation micropiles and slab.