不同降雨条件下石桥边坡稳定性变化规律研究  

Study On Shiqiao Slope Stability Variation under the Condition of Different Rainfall

作　　者：杨建英[1] 柯传芳[2] 范意民[1] 张静薇[2] 

机构地区：[1]三峡库区地质灾害防治工作指挥部,湖北宜昌443002 [2]三峡大学湖北省防灾减灾重点实验室,湖北宜昌443002

出　　处：《资源环境与工程》2013年第5期668-671,共4页Resources Environment & Engineering

摘　　要：降雨入渗是导致边坡失稳的重要因素,以石桥土质边坡为研究对象,基于饱和—非饱和渗流理论,采用GEO-SLOPE有限元计算软件对该边坡在相同降雨强度、不同降雨历时工况下的渗流情况及稳定性进行数值模拟计算,探讨该边坡的地下水位和稳定系数的变化规律,为降雨条件下的土质边坡稳定性分析提供可靠的依据。Rainfall is an important factor of the slope unstability, the Shiqiao slope is the research object of the article, based on the saturated-unsaturated seepage theory, using Geo-slope software to establish a mesh, simulate the seepage condition and stability of the slope in the same rainfall intensity but different rainfall duration. The slope of groundwater level and stability coefficient of variation are discussed, provides the reliable basis for the slope stability analysis in rain- fall condition.

关 键 词：边坡 失稳 入渗 数值模拟 稳定系数 

分 类 号：TU413.62[建筑科学—岩土工程] TU432[建筑科学—土工工程]