Numerical modeling of seepage and deformation of unsaturated slope subjected to post-earthquake rainfall
نویسندگان
چکیده
Slope is susceptible to rainfall-induced failure after being damaged by earthquake. In this study, the seepage and deformation of unsaturated slope during post-earthquake rainfall were investigated using finite element method. Shaking-induced plastic modulus reduction dependent on deviatoric strain shaking-induced permeability change volumetric considered in modeling response following rainfall; damage concept was adopted describe cracks assess impact surface enhancement strength reduction. Then, numerical hydro-mechanical performed with updated model. Analysis showed that earthquake significantly affected slip subjected since soil reduced shear further deformed, causing a more severe landslide, whereas influence earthquake-induced not great; should be incorporated analysis it altered landslide characteristics. generally consistent centrifuge experiments based discussions pore water pressure, stress path, deformation, displacement simulations experiments. The coupled proposed methods could evaluate rainfall.
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ژورنال
عنوان ژورنال: Computers and Geotechnics
سال: 2022
ISSN: ['1873-7633', '0266-352X']
DOI: https://doi.org/10.1016/j.compgeo.2022.104791