Sealed and insulating tank disposed in a floating double hull

摘要

An internal bottom wall (3) of the double hull bears a well structure comprising a rigid container (11) that is arranged through the thickness of the bottom wall of the tank and is intended to accommodate a suction member (1) of a pump. The rigid container comprises a bottom wall (13) situated further towards the outside than the secondary sealed membrane (5) of the bottom wall of the tank. The well structure comprises a primary connecting plate (14) surrounding the container, the primary connecting plate having a connecting surface extending parallel to the primary sealed membrane of the bottom wall of the tank, the primary sealed membrane (7) of the bottom wall of the tank being attached to the connecting surface in a sealed manner all around the well structure.