France – Engineering services – Marché cadre national Etudes de sols pour les ouvrages RTE LA LS et Postes

Realisation of soil studies for RTE's overhead lines (LA), underground links (LS) and substations. The studies covered by this contract include, in particular: • The performance of on-site surveys, • The sampling of samples from the surveys and the performance of laboratory tests, • The analysis of survey data and the determination of the mechanical characteristics of soils and geotechnical risks, • The sizing and design of geotechnical works, • The supervision of the studies and the execution of geotechnical works, • Soil and water pollution studies. These studies are carried out at different stages: • Before the work contract phase: studies G1 and G2. • After contractualisation and during the study and work execution phase: studies G3 and mission G4. • After or during the work execution phase, in case of a need for a geotechnical diagnosis of the existing work: study G5.