降雨条件下非饱和土坡渗流场与应力场耦合分析
首发时间:2007-04-17
摘要:降雨是影响土质边坡稳定的主要因素之一,根据岩土饱和-非饱和渗流理论及非饱和土的破坏准则,利用有限元方法,对降雨条件下非饱和土坡地下水渗流场和应力场进行了耦合分析,得到了边坡地下水压力水头和变形的变化规律,为边坡的稳定性分析和滑坡预测提供依据。
关键词: 降雨入渗 非饱和 边坡 耦合分析
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Analysis for coupled seepage-mechanical processes of unsaturated soil slope under rainfall condition
Abstract:Rainfall is one of the important factors affecting soil slope stability.Considered the theory of saturated-unsaturated seepage and the failure criterion of unsaturated soil,using finite element method,has carried on the analysis for coupled seepage-mechanical processes of unsaturated soil slope under rainfall condition.Some conclusions are drawn after analyzing the change of hydraulic head and stress field.The study can provide importmant data for slope stability analysis and landslide prediction.
Keywords: rainfall infiltration unsaturated slope coupled analysis
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