三峡大学学报（自然科学版）2017，Vol.39Issue(5)：17-21,5.DOI:10.13393/j.cnki.issn.1672-948X.2017.05.004
边坡稳定分析中圆弧与折线滑动面对比分析研究
Comparison between Arc and Polyline Failure Surfaces in Slope Stability Analysis
摘要
Abstract
In this paper,the effects of two kinds of sliding surfaces of arc and polyline and simplified Bishop method and generalized limit equilibrium method (GLE) for slope stability analysis are studied.Taking the homogeneous slope,the reinforced slope and the stratified soil heterogeneous slope as examples,the circular and polyline sliding surfaces are calculated by two algorithms to analyze the difference between the safety factor and the critical slip surface.The results show that when the sliding surface is an arc sliding surface,the simplified Bishop method and the generalized limit equilibrium method have the same safety factor and critical slip surface.Compared with the arc sliding surface,the safety factor obtained by the polyline sliding surface is smaller.It is shown that the arc is easy to fall into local extremum for complex slopes;while the polyline sliding surface is easy to search for global extremum.The study results can provide theoretical references for the design of engineering slopes.关键词
边坡稳定/圆弧滑动面/折线滑动面/安全系数/通用条分法Key words
slope stability/arc sliding surface/polyline sliding surface/factor of safety/general limit equilibrium method分类
建筑与水利引用本文复制引用
李建举,李玉莹..边坡稳定分析中圆弧与折线滑动面对比分析研究[J].三峡大学学报（自然科学版）,2017,39(5):17-21,5.基金项目
住房与城乡建设部研究开发项目(2015-K2-008) （2015-K2-008）
