Coupled Numerical Simulation of Slope Stability with Unsaturated Soil under Rainfall Condition
Rainfall is one of main factors that affect the slope stability. Rainfall infiltration will change the degree of saturation determination of soil, and further influence the pore water pressure and the permeability coefficient of the medium. Based on the saturated-unsaturated seepage theory and the effect of rainfall infiltration, coupled with two phase medium of unsaturated soil and water, numerical simulation of soil slope under rainfall condition is carried out using the strength reduction finite element method. Changes of the slope displacement, pore pressure and safety factor under different rainfall periods and rainfall intensities are discussed. This study can provide important data for the slope stability analysis and landslide prediction.
unsaturated soil slope rainfall infiltration coupled analysis strength reduction method numerical simulation
LI Jixiang LIU Xiaofan HANG Zhaohua
Faculty of Engineering, China University of Geosciences (Wuhan), P.R.China, 430070 Department of Civ Department of Civil Engineering, Wuhan Polytechnic University, P.R.China, 430023
国际会议
2009 International Forum on Porous Flow and Applications(第十届全国渗流力学学术会议)
武汉
英文
1014-1019
2009-04-26（万方平台首次上网日期，不代表论文的发表时间）