考虑复合地基侧摩阻力作用下土中竖向应力解  

Calculation of Vertical Stress in Soil Subject to Lateral Friction Load of Composite Foundation

作　　者：袁晓波 孙东泽 曾宪明 王东 冉崇静 

机构地区：[1]中铁工程设计咨询集团有限公司,北京100080

出　　处：《铁道标准设计》2017年第2期24-29,共6页Railway Standard Design

摘　　要：为了估算新建路基对既有路基影响,以半无限体内Mindlin应力方程解为计算基础,假设复合地基为一个加固整体,对复合地基侧壁摩阻力进行积分,推导复合地基侧摩阻力在土体中引起的附加应力的解析表达式,计算在复合地基作用下距填筑坡脚处一点的土竖向附加应力。In order to estimate the impact of new subgrade on existing roadbed,this paper integrates the composite foundation lateral friction to derive the formulas for calculating the superimposed stress in soil subject to lateral friction load based on Mindlin’s formula in semi-infinite elastic body and the assumption that the composite foundation is taken as a whole reinforcement body. The lateral superimposed stress of the soil at the filled slope toe under the action of the composite foundation is also calculated.

关 键 词：铁路路基 MINDLIN应力解 侧摩阻力 附加应力 地下连续墙 解析解 

分 类 号：U213.157[交通运输工程—道路与铁道工程]