221018-essais-hydrauliques

Hydraulic testing validated for the Tortue field gas terminal

Infrastructures Division

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As part of the draft-design phase and preparation for operations on the Tortue/Ahmeyim Hub/Terminal, 3D hydraulic testing carried out by Eiffage Génie Civil Marine's teams enabled their alternative design for the project's breakwater caissons to be validated.

The 1/60 scale model of the caissons was tested under ten-thousand-year swells (maximum swell height 11 m) . The full-scale caissons will weigh 16,000 tonnes and measure 28 m wide x 55m long x 32 m high. All in all, 21 units will be needed to build the seawall of over a kilometre long, an integral part of this significant GNL project located on the maritime border between Mauritania and Senegal.

Eiffage Génie Civil Marine was chosen by BP, in consortium with Saipem SA, to carry out the front-end engineering and design (FEED) work and prepare the construction of this Hub/Terminal, involving infrastructure situated 10 km from the coast and protected at sea by a breakwater which is to shelter a floating liquefaction plant and enable tankers to dock.