Stations


1 - Installation of foundations (piles or diaphragm walls)

 

2 - Excavation by levels with installation of struts to hold the ground / Sprayed concrete works.

 

3 - Construction of foundation slab, walls and slabs of the platform, intermediate levels and top slab.

 

4 - Infilling

 

The specificity of Saint-Germain station is underground excavation. The top slab is made first. Then excavation is performed under the cover slab.