Pull-rod undocking method for semi-submersible offshore engineering platform

The invention discloses a pull rod undocking method for a semi-submersible offshore engineering platform, including the external floating body pulling out and undocking stage and the external floatingbody separation stage. The pull rod undocking method utilizes the external floating body to provide an external buoyancy, and the external floating body is connected to the semi-submersible offshoreengineering platform through a pull rod, and the connection mode is easy to connect and dismantle, and the method does not affect the hydrodynamic performance of the semi-submersible offshore engineering platform in the later operation, and solves the predicament of the semi-submersible offshore engineering platform undocking in the prior art. 本发明公开了种半潜式海洋工程平台拉杆式出坞方法。包括外加浮体拉浮出坞阶段和外加浮体脱离阶段；本发明采用外加浮体对半潜式海洋工程平台提供外加浮力外加浮体通过拉浮拉杆与半潜式海洋工程平台进行连接，该连接方式连接、拆卸均较为简便，该种方法不会对半潜式海洋工程平台在后期营运中的水动力性能产生影响，较好的解决了现有技术中半潜式海洋工程平台出坞的困境。