Finite difference probabilistic slope stability analysis based on collocation-based stochastic response surface method (CSRSM)
作者： Samir Ghedjati , Mohammed Lamara , Youcef Houmadi
DOI: 10.1007/S41062-020-00322-X
关键词: Mathematics 、 Probabilistic logic 、 Slope stability analysis 、 Mathematical analysis 、 Cohesion (geology) 、 Sobol sequence 、 Landslide 、 Slope stability 、 Factor of safety 、 Parametric statistics
摘要: Significant damage has been observed due to the landslide along East–West motorway section, located near Ain Bouzian–El-Harrouch region, Northeast Algeria. In this paper, a probabilistic study was carried out assess stability of slope, with total height 60 m and varying inclination angles. Two cases were considered without presence groundwater table. To investigate failure probability collocation-based stochastic response surface method employed. The input random parameters Young modulus E, cohesion C, friction angle φ, where system is factor safety. identify effective contribution each parameter in variability response, global sensitivity analysis based on Sobol indices conducted. Also, parametric realized inspect effect geotechnical variations reliability slope stability. result showed that strongly influenced by inherent hydrogeological ground conditions.
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