Stability analyses of rainfall induced landslides
Stability analyses of rainfall induced landslides
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DOI：
10.1061/(asce)1090-0241(2004)130:4(362
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发表时间：
2004-04-01
影响因子：
3.9
通讯作者：
Znidarcic, D
中科院分区：
文献类型：
--
作者：
Collins, BD;Znidarcic, D
研究了降雨诱发边坡失稳的稳定性问题。具体而言，负和正孔隙水压力对最初的非饱和斜坡的稳定性的影响进行了仔细的解释，并与无限的斜坡分析方法，以提出一个预测公式的边坡破坏发生的降雨事件的结果。该配方作为一个基线分析方法，用于评估潜在的不稳定的土壤边坡，受到表面渗透，并解释了各种触发机制，可能会发生的斜坡几何形状，土壤强度和渗透参数的个人组合的基础上。概述了一个程序的方法，利用解析公式来预测的安全系数的变化，受渗透和一个案例研究的详细分析，以验证该方法。定量陈述的时间和深度的关系，土壤，坡度和降雨参数的故障。
The slope stability issues concerning rainfall induced slope failures are investigated and presented. Specifically, the effect of both negative and positive pore water pressures on the stability of initially unsaturated slopes are carefully explained and coupled with infinite slope analysis methods in order to present a predictive formulation of slope failures that occur as a result of rainfall events. The formulation serves as a baseline analysis method for evaluating potentially unstable soil slopes that are subject to surface infiltration and explains the various triggering mechanisms that may occur based on individual combinations of the slope geometry, soil strength, and infiltration parameters. A procedural method is outlined for utilizing the analytical formulation to predict the change in the factor of safety for a slope subject to infiltration and a detailed analysis of a case study is presented to verify the method. Quantitative statements are made concerning the time and depth of failure in relationship to the soil, slope, and rainfall parameters.