非饱和土瞬态渗流无限边坡稳定性研究
STUDY OF TRANSIENT SEEPAGE INFINITE SLOPE STABILITY IN UNSATURATED SOILS
徐杰 1李湛1
作者信息
- 1. 广东省冶金建筑设计研究院有限公司,广州 510062
- 折叠
摘要
预测浅层滑坡的位置和时间是减少降雨型滑坡灾害的重要手段.文中基于极限平衡法的边坡稳定性分析理论,提出用于瞬态非饱和渗流条件下的无限边坡稳定性分析方法,研究了粗砂、中砂和细砂3种假定材料组成的陡峭边坡破坏的时机,滑坡预测结果与现场监测数据相吻合,验证了滑坡预测方法的有效性.
Abstract
Predicting the location and timing of shallow landslides is an important means of reducing rainfall-type landslide disasters.Basing on the theory of slope stability analysis of limit equilibrium method,an infinite slope sta-bility analysis method for transient unsaturated seepage conditions is proposed,which uses pressure head and volu-metric water content profile and combines with the effective stress to carry out the slope stability analysis.The tim-ing of the destruction of steep slopes is also investigated,consisting of the coarse,medium,and fine sand.The results of the landslide prediction coincide with the on-site monitoring data.The landslide prediction results match with the field monitoring data,which verifies the validity of the landslide prediction method.
关键词
非饱和土/瞬态渗流/无限边坡/滑坡预测/边坡稳定性Key words
unsaturated soils/transient seepage/infinite slopes/landslide prediction/slope stability引用本文复制引用
出版年
2024
NETL
NSTL
万方数据