【摘要】 分析了降雨对黄土边坡稳定性的不利影响,提出了考虑降雨作用的黄土边坡稳定分析方法,并以山西省临离高速公路第三合同段K70+465处为工程背景,运用非饱和土强度理论和有限元强度折减法进行数值模拟分析,研究了降雨强度、降雨时长、雨型和土体渗透系数对边坡稳定性的影响,从而揭示边坡受降雨作用下的瞬态变化过程。研究成果对黄土地区路堑高边坡稳定性评价具有一定的借鉴意义。更多还原

【Abstract】 In this paper the negative impact of rainfall on the stability of loess slope is analyzed and loess slope stability analysis method is proposed considering of the rainfall effect based on engineering background of the Third Contract Section K70+465of Linxian-Lishi Expressway in Shanxi Province.Unsaturated soil strength theory and finite element strength subtraction for numerical simulation analysis are used to study the rainfall intensity,rainfall duration,rainfall type and the influence on slope stability due to coefficient of permeability of soil mass so as to reveal the transient change process in a slope under rainfall.The research results have essential reference significance for stability evaluation in the high cutting slope area.更多还原