초록 ▼

A jack-up platform of the type having a buoyant upper barge (10) mounted so that it can be moved along the length of bearing legs (12), mechanical mechanism (18) for moving the legs (12) relative to the barge (10), and submerged storage tank (14) intended to rest on the bottom. The tank (14) has a l

A jack-up platform of the type having a buoyant upper barge (10) mounted so that it can be moved along the length of bearing legs (12), mechanical mechanism (18) for moving the legs (12) relative to the barge (10), and submerged storage tank (14) intended to rest on the bottom. The tank (14) has a lower opening (26) allowing the inside of the tank (14) to be placed in contact with the marine environment. The tank defines a bell-shaped/inverted U-shaped cavity confining an air bubble (30) in its upper part. The tank (14) is connected to the lower end of the legs (12) so that it can be moved relative to the barge (10) from the mechanical mechanism (18) for moving the legs.

대표청구항 ▼

[What is claimed is:] [1.]a plurality of bearing legs having lower ends, respectively;a buoyant upper barge mounted so as to be movable along the length of said bearing legs;mechanical moving means for moving said bearing legs relative to said upper barge; anda submersible storage tank connected to

[What is claimed is:] [1.]a plurality of bearing legs having lower ends, respectively;a buoyant upper barge mounted so as to be movable along the length of said bearing legs;mechanical moving means for moving said bearing legs relative to said upper barge; anda submersible storage tank connected to the lower ends of said bearing legs so that said storage tank can be moved by said mechanical means relative to said upper barge,said storage tank having a lower opening for selectively permitting an interior of said storage tank to be placed in free communication with a body of water, said storage tank being adapted to rest on a surface below the body of water,wherein an upper portion of said storage tank defines a cavity having an inverted U-shaped cross-section for confining an air pocket therein, andwherein said mechanical means are operable to apply a force on said bearing legs in order to cause said storage tank to sink, and to apply an opposite force on said bearing legs to cause said storage tank to rise.