应力状态和湿化路径对非饱和边坡的瞬态渗流状况的影响  

The Influence of Stress State and Wetting Path on the Transient Seepage in Unsaturated Slopes

作　　者：刘建坤[1] 吴宏伟[2] 赵洪勇[1] 

机构地区：[1]北方交通大学土木建筑工程学院 [2]香港科技大学土木系

出　　处：《兰州大学学报（自然科学版）》2001年第1期102-108,共7页Journal of Lanzhou University(Natural Sciences)

基　　金：教育部优秀青年教师基金;中国科学院资源环境领域知识创新工程重要方向项目! (KZCX2 - 30 6)资助项目

摘　　要：借助双变量理论 ,提出了预报非饱和土中渗流和变形的简化模型 ,由此考察了依赖于应力状态的土的水分特征曲线 (Stress Dependent Soil Water Characteristic Curve,SDSWCC)及其干湿滞回效应对非饱和边坡中的瞬态渗流的影响 .The influence of stress dependency and hysterises of soil water characteristic curve (SWCC) on transient seepage of water in unsaturated soil slopes was investigated in this paper. By using two sets of state variables, a simplified model for prediction of fluid flow and deformation in unsaturated soil was developed. By using this numerical model the effects of stress dependency of hydraulic properties and hysterises in groundwater modelling were studied.

关 键 词：土水特征曲线 滞回效应 非饱和边坡 瞬态渗流 应力状态 非饱和土力学 湿化路径 变形 

分 类 号：TU435[建筑科学—岩土工程]