分析了双排围护桩的工程效应及其结构受力特性，结合工程实例，利用ADINA有限元软件建立了双排围护桩的三维模型，对基坑开挖过程中桩体位移及不同排距情况下的桩体结构变形进行了计算分析。结果表明，桩体位移法计算值与实测值接近,说明模拟效果较好，对于类似工程的优化设计施工具有一定的指导作用。

The deformations of the double-row piles are analyzed in this paper. A 3D finite element model is introduced based on an engineering illustration. The displacement of the piles during excavation is computed by ADINA(automatic dynamic incremental nonlinear analysis). The results are compared to the observed values and in good agreement with the observed data. Parametric studies are conducted to optimize the pile structure.