摘要
对苏州市轨道交通2号线金民东路站深基坑使用灌注桩作为支挡结构的开挖、支护施工进行了有限元数值模拟,据此分析了灌注桩内力、水平侧移等随施工过程的变化以及主体结构的内力情况,并研究了灌注桩刚度、地基土刚度对支护结构侧移和弯矩的影响,对实际施工起到一定的指导作用。
The numerical simulations by 2D FEM are carried out for excavation and supporting of deep foundation ditch of Jinmin East Street Station on Suzhou Metro Line 2, in which filling piles are used as the bracing structure. According to the calculation results, the analysis is given in the internal force of major structures, the internal force and horizontal displacements of the filling pile with the change of the construction process. The influences on displacements and bending moment of protective structures caused by stiffness of filling piles and the foundation soil are also researched, which will guide the real construction well.
出处
《铁道建筑技术》
2007年第6期24-27,共4页
Railway Construction Technology
关键词
深基坑
有限元计算
灌注桩
支护结构
deep foundation ditch
finite element calculation
filling pile
protective structures
