Off-shore system, foundation of an off-shore system and method for setting up an off-shore system

摘要

An offshore installation (1), in particular an offshore wind turbine, has a buoyant foundation (2) which can be lowered by flooding a cavity, and a structure (6) on which functional units (7, 8) of the installation (1) are arranged on. The foundation (2) comprises a base plate (3), a pedestal (4) arranged on the base plate (3), which projects beyond the water surface (12) when the foundation (2) is lowered and on which the structure (6) can be mounted is, as well as a floatable floating body (5) formed annularly around the base (4). In a method for erecting an offshore installation (1), in particular an offshore wind turbine, a buoyant foundation (2) is prefabricated in a port area, towed and lowered after its completion to a place of installation, and then at the installation the Plant (1) with a structure (6) and functional units (7, 8) of the plant completed. In the harbor area, a bottom plate (3) of the foundation (2) is concreted, mounted on the bottom plate (3) a base (4) of the structure (6) preferably made of precast concrete (15) and after mounting the base (4) a ring around the base (4) formed floodable floating body (5) on the bottom plate (3) and / or the base (4) mounted.