基于强度折减理论对金工立交高填方边坡的稳定性分析  

Analysis on Stability of High-fill Slope for Jingong Overpass Based on Strength Reduction Theory

作　　者：唐薇[1] 廖义玲[1] 梁风[1] 

机构地区：[1]贵州大学资源与环境工程学院,贵阳550025

出　　处：《路基工程》2013年第1期56-59,共4页Subgrade Engineering

基　　金：贵州大学研究生创新基金项目(校研理工2012054)

摘　　要：在边坡稳定性分析中,运用传统的条分法和有限元强度折减原理对金阳新区金工立交高填方边坡进行分析;通过约束剪出口的方式,采用有限元强度折减法能准确搜索出多级滑面的滑面位置和确定稳定系数。多滑面的确定克服了传统方法确定滑动面可能存在的错误或遗漏。两种方法的对比,得到的结果很相近,其稳定系数都大于规范要求的1.35,高填方边坡稳定。The analysis on stability of high-fill slope for Jingong Overpass in Jinyang New Area is carried out by means of tradition slice method and finite element strength reduction. By constrainting of shear opening and by useing of finite element strength reduction, the position of multiple sliding surfaces could be searched correctly and the stability coefficient could be confirmed. It overcomes the possible error or omission in confirmation of sliding surface by traditional method. The two methods give similar results that both the stability coefficients are more than 1.35 required by the specification and the high-fill slope is stable.

关 键 词：高填方边坡 有限元强度折减理论 滑动面搜索 稳定系数 

分 类 号：U416.14[交通运输工程—道路与铁道工程]