摘要
推导了平移模式下的地表沉降理论显式解,在此基础上提出了任意挡墙变位诱发墙后地表沉降的简化计算方法。分别与平移、绕墙趾及绕墙顶等3种变位模式下的弹性有限元数值解进行对比分析,对简化解析方法进行了验证。最后将这一简化解析方法应用于工程案例预测,与软土地基现场实测结果进行对比,发现理论预测的地表沉降曲线与实测值相吻合,且较准确地预测了最大沉降发生的位置,表明了该简化解析方法的实用性。
A basic solution for ground settlement caused by horizontal movement of retaining wall is derived.And then a simplified method is proposed for computing the ground settlement caused by arbitrary mode of movement of wall based on the basic solution.The FEM numerical solution is then used to verify proposed simplified method by comparison of their solutions to ground settlement,which is caused by three modes of horizontal rigid movement for translation,rotation about bottom and rotation about top,respectively.Finally,the simplified solution is applied to prediction of measured data in the field.The predicted settlement curve of ground is similar to the measured one;and the location of the maximum settlement is close to the measured one as well,showing that the simplified analytical method is practicable.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2016年第8期2293-2298,共6页
Rock and Soil Mechanics
基金
杭州市建委科技项目(No.2010391)~~
关键词
基坑
挡墙水平移动
地表沉降
解析解
excavation
horizontal movement of retaining wall
ground settlement
analytical solution
