路基工程Issue(4)：123-126,130,5.
不同土性下L型挡土墙土压力研究
Study on Soil Pressure of L-shaped Retaining Wall under Different Soil Properties
摘要
Abstract
The layered stage filling of L-shaped retaining wall by fill with different soil properties is simulated with FEM, which lays the focus on analysis of the laws of the fill strength affecting the soil pressure as well as of both the stress distribution at the retaining wall foundation and the material stiffness affecting the force on the wall body. The results show that where sandy fill φ 〉 30°, the lateral pressure against the back of retaining wall will tend to be equel; where cohesive fill c 〉 20kPa, the pressure will not be affected by ~ value and tend to be equel; either sandy soil or cohesive soil, when the fill strength reach certain extent, the safety factor for calculation outside the retaining wall will fluctuate around certain stable valve and the soil mass of the wall back does not reach a state of ultimate equilibrium; the stress distribution at the retaining wall foundation will present ＂saddle＂ shape with the average foundation stress [δ] 〈 140kPa; the influence of the foundation stiffness on soil pressure is less than that of the fill.关键词
L型挡墙/土压力/分布规律/数值分析/基底应力Key words
L-shaped retaining wall/soil pressure/distribution law/numerical analysis/foundation stress分类
交通工程引用本文复制引用
周应华,赵洪彬,郑玉辉..不同土性下L型挡土墙土压力研究[J].路基工程,2012,(4):123-126,130,5.基金项目
中铁二局科技项目：一般地区悬臂式挡土墙程序化自动设计 （）
