The invention provides a mounting method of a small starfish type tension leg platform. The mounting method comprises the following steps: S1, transporting a lower floating body to an operation sea area, and connecting the lower floating body with a suction anchor preassembled on a seabed; enabling the lower floating body to dive to a preset depth and reach balance; s2, the upper floating body is dragged to an operation sea area in a dry mode; the upper module is connected with the tug through a temporary mooring rope; the air bag is inflated, so that the upper module floats on the water surface; s3, the lower floating body slowly floats upwards, a first sleeve, a second sleeve and a third sleeve on the upper module are sequentially aligned with a first guide pile, a second guide pile and a third guide pile on the lower floating body, and the weight of the upper module is slowly transferred to the lower floating body until the air bag completely floats out of the water surface; and S4, the anchor chain is tensioned, air in the air bag is exhausted, and installation is completed. In the whole installation process, a large floating crane does not need to be arranged, the installation cost is reduced, meanwhile, butt joint positioning is conducted in the mode that the guide piles and the sleeves are sequentially in butt joint, the butt joint difficulty is effectively reduced, and the butt joint efficiency is improved.
本发明提供一种小型海星式张力腿平台的安装方法包括:S1、将下部浮体运输至作业海域,与预装在海床上的吸力锚连接;使下部浮体下潜至预设深度,并达到平衡;S2、将上部浮体干拖至作业海域;通过临时系泊缆将上部模块和拖轮连接;向气囊充气,使上部模块漂浮在水面上;S3、使下部浮体缓慢上浮,并使上部模块上的第一套筒、第二套筒、第三套筒依次与下部浮体上的第一导向桩、第二导向桩、第三导向桩对准,使上部模块的重量缓慢转移至下部浮体上,直至气囊完全浮出水面;S4、张紧锚链,排出气囊中气体,完成安装;整个安装过程,无需配备大型浮吊,降低安装费用,同时采用导向桩与套筒依次对接的方式进行对接定位,有效降低对接难度,提高对接效率。
Installation method of small starfish type tension leg platform
一种小型海星式张力腿平台的安装方法
2023-08-01
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |