吸力基础广泛应用于大型海洋工程结构物的安装固定。本文使用有限元分析软件Abaqus，基于耦合欧拉-拉格朗日方法（CEL）建立三维大变形有限元分析模型，对吸力基础安装贯入时土塞隆起过程进行了有限元数值模拟，将有限元模拟结果与理论计算进行综合分析，得到了土塞隆起及其削弱吸力基础极限承载力的机理。

Suction foundation is widely used in the installation and fixation of large offshore engineering structures. In this paper, the finite element analysis software ABAQUS is used to establish a three-dimensional large deformation finite element analysis model based on the coupled Euler Lagrange method (CEL). The finite element numerical simulation of the soil plug uplift process during the installation and settlement of suction foundation is carried out. The finite element simulation results and theoretical calculation are comprehensively analyzed, and the mechanism of soil plug uplift and its weakening the ultimate bearing capacity of suction foundation is obtained.