桂林理工大学学报2017，Vol.37Issue(3)：475-480,6.DOI:10.3969/j.issn.1674-9057.2017.03.013
某弃渣场边坡稳定性的可靠度分析
Stability reliability analysis of an abandoned dreg site slope
摘要
Abstract
Abandoned dreg site is an important affiliated facility of tunnel engineering,its stability is of great significance to the safety of highway and railway.A recently abandoned dreg site slope in south-central China is taken as the research object.The sensitivity of Fs with the variation material parameters is analyzed,and Monte Carlo method is adopted for its stability reliability evaluation,considering the parameter uncertainty and different sidling modes.The results show that the Fs is most sensitive to the friction angle of the dreg,while cohesion is secondary,and least sensitive to the material weight.Due to the hysteresis of matrix suction inside the slope,Fs meets the minimum at 48 hours after the rain when encounters a storm with a recurrence period of 25 years.Taking Fst =1.15 as the stability criterion standard in the storm condition according to the current design code,the partial unsteady state probability of the slope is 16.8％,and its overall unsteady state probability is 0.This article provides some reference for the study on the stability of similar slope.关键词
弃渣场/边坡/稳定性/蒙特卡罗法/敏感性/可靠度Key words
abandoned dreg site/slope/stability/Monte Carlo method/sensitivity analysis/reliability analysis分类
交通工程引用本文复制引用
吴谦,毛雪松,刘龙旗,刘飞飞,宋玉品..某弃渣场边坡稳定性的可靠度分析[J].桂林理工大学学报,2017,37(3):475-480,6.基金项目
国家自然科学基金项目(51378072) （51378072）
中央高校基本科研业务费专项资助项目(310821162012 （）
310821161023) （）
