深基坑围护结构内力及变形各影响因素分析

On analysis of deep foundation pit palisade structural internal force and each affecting factor of deformation

利用正交法安排试验,使用ANSYS软件建立了有限元计算模型,通过计算机电算和极差统计分析评价了桩墙厚度、桩的嵌固深度、支撑的刚度、支撑的道数、支撑的水平间距及支撑所加的预应力等因素对围护结构变形及内力的敏感度。对于L形基坑拐角处支撑的布置问题,利用理正深基坑支护结构设计软件F-SPW来模拟计算,并通过多种平面布置方案的比较分析,得到了一些有益的结论。

By using orthogonal method to arrange test,and ANSYS software to build finite element calculation model,through computer computing and range statistical analysis to evaluate the pile wall thickness,pile embedded depth,support stiffness,support passage number,support horizontal spacing,support for prestressed factors to the deformation of palisade structure and sensitivity of the internal force.For the layout problem of L-shaped foundation pit corner supporting,using deep foundation pit palisade structure design software F-SPW to simulate calculation and through the comparative analysis of a variety of plane layout scheme,some beneficial conclusions are obtained.