结合上海市区具体工程的施工控制情况,通过增加、降低地下连续墙刚度和内支撑刚度的大小,采用两维施工模拟有限元技术,详细探讨了上述刚度变化对围护结构的变形和内力的影响,并比较两者的影响程度,从而为工程的施工技术提供指导性依据和对策 Combined with the construction control of specific project in Shanghai, the two-dimensional construction simulation finite element method is adopted to increase and decrease the stiffness of underground diaphragm wall and internal support, and the deformation and internal forces of the retaining structure are discussed in detail Influence, and compare the impact of the two, thus providing guidance and countermeasures for the construction technology of the project