Quantitative assessment of slope instability risk considering soil heterogeneity
Based on Monte Carlo simulation and random field methods,inversion of different failure modes of slope under soil non-uniformity conditions is carried out,and a quantitative risk evaluation method for slope failure considering soil non-uniformity is proposed in the study.Compared with the uniform soil slope,the landslide area,critical slip surface and factor of safety of the soil non-homogeneous slope are all uncertain,thus,the soil non-uniformity has a significant effect on the failure mode and stability of slope.By calculating the sliding area of a two-dimensional slope,a landslide risk assessment index considering multiple failure modes is proposed,which can provide a certain technical basis for quantitatively evaluating the landslide risk and mitigating landslide disasters.
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