摘要
在传统的应力平衡方程基础上,结合岩土介质饱和-非饱和渗流理论,考虑边坡岩土体的非饱和性及渗透系数的非线性特征,建立了渗流场-应力场耦合方程,并将其时间、空间离散后得到增量形式的有限元方程组。结合数值算例,对降雨条件下非饱和土质边坡进行了流固耦合分析。研究结果可为降雨条件下边坡稳定性分析和滑坡预测提供技术支持。
Based on saturation-unsaturated seepage theory of rock soil medium,considered unsaturated characteristics of rock and soil mass and nonlinear characteristics of permeability coefficient,coupled equations of the seepage field and the stress field was established on the basis of the traditional stress balance equation.The incremental form of finite element equations discrete in time and spaces was obtained.Combining with numerical samples,the change law of soil slope in the process of rainfall was studied by ...
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2009年第2期133-136,共4页
Journal of Wuhan University of Technology
基金
湖北省教育厅科学研究计划重大项目(Z200618001)
关键词
非饱和土边坡
降雨入渗
耦合分析
有限元
数值模拟
unsaturated soil slope
rainfall infiltration
coupled analysis
the finite element method
numerical simulation
