Construction of a wharf

The project involved the construction of 500 m long linear wharf divided into 3 tranches, a return wharf and possibly an optional tranche towards the north. 

The entire project was to be built partially out into the sea and was designed as sheet piles with a rear curtain wall.  The wharves and hard standing are designed to allow the construction of oil rigs and their loading onto barges.

G12 preliminary design mission

Campaign of investigations

• 32 pressuremeter tests in the sea and on land to depths of 40 m
• 437 pressuremeter tests and SPTs
• 26 intact samples taken
• Laboratory tests with 18 identifications, 2 oedometer tests, 13 shear tests

The mission included:

• Analysis and synthesis of the geological, hydrogeological and geomechanical context of the site
• Characteristics of the foundations to be created, reinforcement of the ground
• Foreseeable settlement 
• Geotechnical hypotheses to be taken into account to justify the structures
• Definition of the backfill conditions
• Particular recommendations for the backfilling with estimation of the settlement and its duration
• All the geotechnical information necessary to the project