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首页> 外文期刊>International journal of geomechanics >Stochastic Analysis of Rainfall-Induced Slope Instability and Steady-State Seepage Flow Using Random Finite-Element Method
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Stochastic Analysis of Rainfall-Induced Slope Instability and Steady-State Seepage Flow Using Random Finite-Element Method

机译：降雨引起的边坡失稳和稳态渗流的随机有限元分析

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The stochastic analysis of unsaturated rainfall-induced slope instability has been studied by many researchers. However, the applicability of random FEM (RFEM) has not been used enough to assess the effect of the uncertainty of soil parameters and suction on these types of slope. In this study, considering the uncertainties of soil parameters leads to an uncertain wetting branch of the soil-water retention curve (SWRC); therefore, a stochastic permeability coefficient curve with respect to suction is obtained. For this purpose, a computer program has been coded to determine the reliability indices of unsaturated slopes under different rainfall intensities and seepage flow using RFEM. In a subsequent part of the paper, the functions of slip surface are obtained for different simulations and rainfall intensities by fitting the points with maximum shear strain. Finally, the uncertainties of slip surfaces are analyzed.
机译：许多研究人员已经对非饱和降雨引起的边坡失稳进行了随机分析。然而，随机有限元法（RFEM）的适用性还没有被用来评估土壤参数和吸力的不确定性对这些类型的斜坡的影响。在这项研究中，考虑土壤参数的不确定性会导致土壤保水曲线（SWRC）的润湿分支不确定。因此，获得了相对于吸力的随机渗透系数曲线。为此，已经使用RFEM对计算机程序进行了编码，以确定在不同降雨强度和渗流下非饱和斜坡的可靠性指标。在本文的后续部分中，通过将点与最大剪切应变拟合，可以获得针对不同模拟和降雨强度的滑移面功能。最后，分析了滑动面的不确定性。

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