Based on the verified finite element parameters of a project, we carry out load tests with sleeve and under excavation of piles of slab in dock by the software of ABAQUS, and discuss the changes of the bearing load of pile due to the depth and radius of excavation, depth and location of support wall. Through this study, the basic knowledge of the effects of excavation on pile foundation of slab in dock are initially obtained , which is of some referential significance for the improvement of theories for piled foundation design.%利用有限元软件 ABAQUS,基于实际工程验证的数值分析方法,对地面加套管试桩及船坞基坑开挖条件下底板桩基进行有限元计算,并讨论开挖深度、开挖半径、围护墙的深度和位置等因素对桩基极限承载力的影响规律,取得了船坞基坑开挖对底板桩基承载力影响的基本认识。这些认识对于改进船坞底板桩基设计方法有参考价值。
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