【摘要】 以某地铁站基坑开挖支护为例,运用二维平面应变有限元法,以扩展了的修正剑桥模型为基础,利用ANSYS模拟了计算基坑开挖过程中不同阶段的支护水平位移、地表沉降、基坑隆起以及支撑轴力,指出其计算结果和实测结果吻合得较好,有限元法将是今后基坑支护设计计算中合理可行的方法。更多还原

【Abstract】 Taking the example of excavation and support of a subway foundation pit,applying 2-D plane to finite element method,and based upon expanded revised Cambridge model,it applies ANSYS to simulate the horizontal displacement,floor subsidence,foundation pit bulge and support axis force of the support on different stages of foundation pit excavation.The calculated result coincides with tested result.Finite element method is a reasonable and feasible method to calculate foundation support.更多还原