@article{ref1,
title="Effect of Rainfall on Stability of Anisotropic Soil Slope",
journal="Yantu Lixue",
year="2006",
author="Fan, YW and Zhang, Yunlong and Jin, Xian-Long and Ma, Ya-Qun",
volume="27",
number="Suppl",
pages="1097-1102",
abstract="This paper presents a procedure for calculating the safety factor for an unsaturated and anisotropic slope suffering from rainfall infiltration. The process of infiltration into a slope due to rainfall and its effect on soil slope behavior were examined using a one-dimensional finite element flow deformation coupled analysis program. The modified Mohr-Coulomb failure criterion was adopted for unsaturated soil strength considering variations in strength due to the presence of matric suction. A safety factor was calculated based on the smoothed stress field obtained from finite element analysis; and an optimization technique was used to search for a critical slip surface. Some numerical examples are analyzed. The results illustrate a typical process of infiltration into unsaturated soil slopes and the effect of hydraulic conductivity on slope stability during reinfall-induced infiltration. And the analytical data indicate that the existence of the cranny has a distinct effect on anisotropic slope stability. The effect of cranny should be considered in analyzing stability of slope infiltrating by rainfall.<p />",
language="",
issn="1000-7598",
doi="",
url="http://dx.doi.org/"
}