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本文首先提出一种基坑支护结构全过程内力及变形分析的杆系有限元计算方法，然后结合工程实例，分析了基坑开挖过程中支护结构内力及变形发展的一般规律，并将该法与目前工程中常用的几种计算方法进行了分析比较。
This paper first proposes a finite element calculation method for internal forces and deformation analysis of the foundation pit supporting structure, and then analyzes the general laws of the internal force and deformation development of the retaining structure in the excavation process of the foundation pit. This method is compared with several calculation methods commonly used in the current project.