Offshore structure
AssigneeAker Engineering A/S
InventorsAlf E. Hasle, Per C. Sandnaes
Life of this patent
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Abstract
A compliant concrete structure which is supported by using a compliant pile system consisting of piles and pile sleeves so that the platform may yield to large oscillations when the structure is installed in a body of water. The invention comprises attaching the pile sleeve guides (6) and the pile sleeves (3) to a rotation symmetrical concrete shell which forms the basic structure. The pile sleeves are rigidly connected to the lower end portion (2) of the structure.
Claims7
A compliant offshore concrete structure extending from the sea floor to above the water surface, characterized in that the concrete structure (10) comprises a single rotation symmetrical shell provided with a watertight, pressure resistant bottom structure (13) having integrated, temporarily sealed pipe sleeves (18) and being vertically supported by a compliant pile system comprising pile sleeves (3) rigidly connected to the concrete structure (10) at a lower end portion (2), and piles (4) mounted within the pile sleeves (3) and attached to the pile sleeves (3) at an upper end portion (17), wherein the compliant pile system is adapted to yield to the swaying movements of the concrete structure without losing strength, and said concrete structure having a natural oscillation period greater than the natural oscillation period of the water with which it is in contact.
Dependencies are inferred from the claim text.