埕岛油田浅滩海独立桩结构优化探讨

Optimization Analysis of Single Pile Structures at Beach and Shallow Waters of Chengdao Oilfield

独立桩结构在埕岛油田广泛应用,但由于其桩顶水平位移较大,在实际应用过程中给油田生产造成风险。文章针对埕岛油田的自然环境和地质条件,运用有限元方法对独立桩结构型式进行优化分析。结果显示,标高-3.5m以下变径的独立桩结构型式对减小桩顶的位移效果显著。该研究结果已在实际工程中应用,并取得良好效果。

The single pile structures are widely used in Chengdao Oilfield. But the horizontal displacement at the single pile top is relatively big and it would cause risk to practical oil production. Aimed at the natural environment and geological conditions in Chengdao Oilfield, this paper applies finite element method to conduct optimization analysis of single pile structure. The results show that the structure pattern of single pile with changed diameter below the elevation of-3.5 m has a significant effect on reducing pile top displacement. The research achievement has been applied in actual engineering projects and obtained good effects.