Abstract

Spatial variability of properties of geo-materials has a significant impact on the stability of landslides. In this paper, the spatial variability of soil properties of a landslide is modelled using random-field generated by the discrete cosine transform. The method developed can be readily applied to determine the probability of failure of the landslide using Monte Carlo simulation. A case study of a landslide with spatially variable properties is performed and discussed. The proposed approach is shown to be effective and efficient for probabilistic stability analysis of landslides modelled using 2-D random-field.

中文翻译：

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基于离散余弦变换的随机场生成方法及其在滑坡分析中的应用

摘要

地质材料特性的空间变异性对滑坡的稳定性有重大影响。在本文中，使用离散余弦变换生成的随机场对滑坡土壤特性的空间变异性进行建模。所开发的方法可以很容易地应用于使用蒙特卡罗模拟确定滑坡失败的概率。对具有空间可变属性的滑坡进行了案例研究并进行了讨论。所提出的方法被证明对于使用二维随机场建模的滑坡的概率稳定性分析是有效和高效的。