Effect of hydraulic properties of soil and fluctuation velocity of reservoir water on landslide stability
作者： Kun Song , Echuan Yan , Guodong Zhang , Shuqiang Lu , Qinglin Yi
DOI: 10.1007/S12665-015-4541-1
关键词: Factor of safety 、 Biogeosciences 、 Water level fluctuation 、 Three gorges 、 Landslide 、 Reservoir water 、 Permeability coefficient 、 Geotechnical engineering 、 Geology 、 Permeability (earth sciences)
摘要: Water fluctuation is the main triggering factor of reservoir slope failures, especially in area Three Gorges Reservoir China. Fluctuation velocity water and hydraulic properties soil as defined by soil–water characteristic curve (SWCC), saturated permeability coefficient unsaturated function are key potential that control landslide stability. The effect on stability investigated through a series numerical simulations with different parameters. results show fitting parameters SWCC [i.e., a, n, m for Fredlund Xing (Can Geo J, 31(3):521–532. doi: 10.1139/t94-061 , 1994) equations] have significant water’s drawdown or impounding process. level comprehensive (defined Impact Factor, α) influence landslide. A relative equation: m > α > n > a has been drawn susceptibility “a”, “n”, “m” “α”.
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