防灾减灾工程学报2013，Vol.33Issue(4)：405-411,7.
基于区间有限元方法的边坡稳定性分析
Slope Stability Analysis Based on Interval Finite Element Method
摘要
Abstract
Abstract:Physical and mechanical parameters of rock and soil are uncertain in slope stability analysis.Interval variables are adopted to denote the uncertain parameters in engineering.The interval finite element method,which is combined by interval mathematics and finite element method,is used for uncertain analysis of slope stability.On the basis of the traditional certain finite element program,the interval finite element program aiming at a known potential sliding surface is designed to calculate the displacement,stress and strain interval of a slope.Furthermore,the safety factor interval is also obtained according to the definition of shear stress failure criteria.It is verified that this method is feasible and effective through the project example and comparing with the calculation results obtained by traditional Bishop method.A further discussion on the influence of variability of the geotechnical parameters on slope safety factor is performed.Results show that unit weight,cohesion and internal friction angle interval have significant effects on the safety factor interval.关键词
区间有限元/边坡稳定性/区间变量/安全系数Key words
interval finite element method/ slope stability/ interval variable/ safety factor分类
建筑与水利引用本文复制引用
胡谢飞,陈征宙,张明瑞,王双,黄彬彬..基于区间有限元方法的边坡稳定性分析[J].防灾减灾工程学报,2013,33(4):405-411,7.基金项目
国家自然科学基金项目(41272313)资助 （41272313）
