重庆大学学报2017，Vol.40Issue(3)：59-69,11.DOI:10.11835/j.issn.1000-582X.2017.03.007
饱和渗透系数空间变异性对边坡稳定性的影响
Effects of the spatial variability of saturated permeability on the slope stability
摘要
Abstract
We studied the effects of rainfall pattern,intensity,and duration on the pore-water pressure in the slope and the spatial variability of the saturated permeability on the spatial distribution of pore-water pressure,water content,shear strength parameters and local factor of safety under rainfall.The results show that the rainfall characteristics have significant effects on the pore-water pressure for a given slope.Affected by the main direction of flow,the effect of the horizontal fluctuation scale of saturated permeability on the variation of the pore-water pressure and the water content is greater than that of the vertical fluctuation scale.The critical slip surface of the rainfall-induced landslide is almost parallel to the slope and the depth of the landslide is small.As the increase of the horizontal fluctuation scale,the depth of the landslide increases.Generallv speaking,local factor of safety decreases as the vertical fluctuation scale increases.关键词
饱和渗透系数/空间变异性/孔隙水压力/降雨入渗/局部安全系数Key words
saturated permeability/spatial variability/pore-water pressure/rainfall infiltration/local factor of safety分类
建筑与水利引用本文复制引用
陈朝晖,黄景华,秦文涛,杨春林..饱和渗透系数空间变异性对边坡稳定性的影响[J].重庆大学学报,2017,40(3):59-69,11.基金项目
国家科技重大专项资助项目(2008ZX07315-001-1).Supported by National Science and Technology Major of the Ministry of Science and Technology of China (2008ZX07315-001-1). （2008ZX07315-001-1）
