浅水软地基海区桶形基础平台的沉贯技术

Penetration technology for bucket foundation platforms in sea with shallow water and soft ground

为了在渤海辽东湾海域应用桶形基础采油平台,针对该海域水文地质状况,在负压安装机理研究的基础上制定了桶形基础防冲淘、平台沉贯整体倾斜调整的技术方案,开展室内负压沉贯与静力压贯试验,设计了负压沉贯抽吸泵组模块,并成功应用于JZ9-3W桶形基础平台的海上安装,为在表层地基软弱、海底冲淘严重的浅水区安装桶形基础平台提供了一套可重复利用的抽吸泵组模块和负压安装技术。

In order to utilize buck foundation platforms for oil extraction in Liaodong Bay of Bohai Sea,the technical scheme of anti-scour and inclination adjustment for the bucket foundation platforms was formulated based on the mechanism of negative pressure installation according to its hydrogeological conditions.The suction penetration tests and static force penetration tests were carried out in laboratory.The pumping modules for the suction penetration were designed.The suction installation technology was successfully applied in the JZ9-3W bucket foundation platform so as to provide a set of repeatable pumping module and suction installation technology for buck foundation platforms in shallow water area with weak soft ground and serious seabed scour.