超深基坑支护结构变形与轴力的三维有限元分析

Deformation and Axial Force 3D Finite Element Analysis of Ultra-Deep Foundation Pit Excavation Support Structure

结合济南西客站轨交1号线深基坑工程,详细阐述了支护结构设计方案,合理选取深基坑模拟参数,建立了计算模型,对灌注桩整体水平位移及钢支撑轴力进行了ANSYS有限元分析,并与实测数据比较,证明了应用ANSYS软件对深基坑进行模拟分析具有一定的适用性,为类似工程地质条件下基坑支护结构的有限元研究分析提供了借鉴。

The design scheme of excavation support structure has been expounded in combination with Ji＇nan rail transit line 1 deep foundation pit engineering of Ji＇nan west railway station, the simulation parameters of deep foundation pit has been selected reasonably, and calculation model has also been established, with ANSYS finite element analysis of overall lateral displacement of cast-in-place pile and the steel support axial force, the actually measured data have been compared with the above data, which proved that the application of ANSYS software to the simulation analysis of deep foundation pit has certain applicability, and can provide a reference for the finite element analysis of foundation pit excavation support structure under the similar engineering geological conditions.