中文摘要：

针对风电作业船桩靴易受桩腿滑移和拔桩困难等的影响，而无法适应复杂的海底环境的问题，提出了一种新型可调桩靴和设计整体方案。在分析可调桩靴的机构运动学规律的基础上，采用数值分析法探讨了可调桩靴和传统桩靴结构在极限载荷下的屈曲稳定性能，理论计算了两种桩靴结构的拔桩能力并进行了对比分析。计算结果表明：带有可调桩靴的桩腿结构屈曲稳定能力显著增强，其拔桩阻力低于传统桩靴，更易于拔桩。

英文摘要：

The spudcan on wind turbine installation vessels can be easily influenced by legs＇ sliding and moving and legs＇retracting difficulty, which causes the inability to adapt to the complicated environment at the bottom of the sea. To solve the above problem, a new kind of adjustable spudcan is put forward Basing on analysis of kinematic principle of the adjustable spudcan, the buckling stability of the adjustable spudcan and traditional spudcan under limit load is discussed using the numerical analysis. The two spudcan structures＇ leg retracting ability is predicted and compared with the application of theory formula. The results show that the pile leg＇s buckling critical load with adjustable spudcan is strengthened. The adjustable spudcan ＇s leg resistance is decreased than that of the traditional spudcan.