Hydro-mechanical analysis of rainfall-induced fines migration process within unsaturated soils
作者： Xiao-qin Lei , Zong-ji Yang , Si-ming He , En-long Liu , Henry Wong
DOI: 10.1007/S11629-017-4359-2
关键词: Geotechnical engineering 、 Rainfall infiltration 、 Slope stability 、 Scientific method 、 Colluvium 、 Environmental science 、 Deformation (meteorology) 、 Soil water 、 Slope stability analysis 、 Internal erosion
摘要: Seepage-induced fines migration under rainfall infiltration is a main cause leading to shallow failures in loose colluvial slopes. To describe the full process of within unsaturated soils during and associated hydro-mechanical behaviors, seepage-erosion-deformation coupled formulation proposed this paper. The governing equations are implemented into finite element code used investigate influences skeleton deformation on through soil columns. numerical results were presented detail for better understanding rainfall-induced soils. Further, obtained integrated an infinite slope model stability analysis. show that, will affect rate hence timing failures; meanwhile their more evident if deposition taken account. Moreover, could be reduced gradually due strength loss along with fine particles. Therefore, particular attentions should paid analyzing slopes susceptible internal erosion.
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