Soil shear wave velocity has been recognized as a governing parameter in the assessment of the seismic response of slopes. The spatial variability of soil shear wave velocity can influence the seismic response of sliding mass and seismic displacements. However, most analyses of sliding mass response have been carried out by deterministic models. This paper stochastically investigates the effect of random heterogeneity of shear wave velocity of soil on the dynamic response of sliding mass using the correlation matrix decomposition method and Monte Carlo simulation (MCS). The software FLAC 7.0 along with a Matlab code has been utilized for this purpose. The influence of statistical parameters on the seismic response of sliding mass and seismic displacements in earth slopes with different inclinations and stiffnesses subject to various earthquake shakings was investigated. The results indicated that, in general, the random heterogeneity of soil shear modulus can have a notable impact on the sliding mass response and that neglecting this phenomenon could lead to underestimation of sliding deformations.

中文翻译：

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剪切波速度随机非均质性对边坡滑动质量响应和地震变形的影响

在评估边坡的地震响应时，土壤剪切波速度已被认为是控制参数。土壤剪切波速度的空间变异性会影响滑动质量和地震位移的地震响应。但是，大多数滑动质量响应的分析都是通过确定性模型进行的。本文采用相关矩阵分解法和蒙特卡罗模拟方法，随机研究了土的剪切波速度随机非均质性对滑动质量动态响应的影响。为此，已经使用了FLAC 7.0软件以及Matlab代码。研究了统计参数对不同倾斜度和刚度的土质边坡在地震震动作用下滑动质量和地震位移的地震响应的影响。结果表明，一般而言，土壤剪切模量的随机非均质性可能对滑动质量响应产生显着影响，而忽略这种现象可能会导致对滑动变形的低估。