| 摘要 |
A gravity securing system for a piece of offshore generating equipment such as a wind turbine consists of gravity legs arranged in a star pattern on the seabed and connected to a mast 3 stabilised by tensioned cables. The latter are attached to the legs at points 3e along their length. It can be installed by utilising the legs as hulls of a transportation vessel, launching the system, with the legs arranged alongside one another with the mast, turbine and associated winching equipment on board, and then towing the complete system out to the installation site for sinking the legs thereat, after the legs have been arranged into the configuration required by the seabed contours. Addition of a further pair of buoyancy hulls 2 for temporarily supporting the mast 3 facilitate raising the mast and turbine as a result of sinking the legs, the temporary pair of buoyancy hulls providing a fulcrum. |
