降雨入渗及蒸发对土坡稳定性的影响分析  

STABILITY ANALYSIS OF SLOP UNDER RAINFALL INFILTRATION AND EVAPORATION

作　　者：黄福明[1] 韩同春[1] 郑俊清[1] 

机构地区：[1]浙江大学岩土工程研究所,杭州310058

出　　处：《低温建筑技术》2010年第11期85-86,共2页Low Temperature Architecture Technology

摘　　要：通过选取典型土性参数,对黏土、粉砂土、均质砂土、有黏土覆盖的均质砂土边坡进行了饱和-非饱和渗流分析,得到降雨入渗及蒸发过程的孔隙水压力场和含水率瞬态分布,再利用简化Bishop条分法搜索并计算最危险滑动面的安全系数,对土坡的瞬态稳定安全系数进行评价。The saturated-unsaturated seepage analysis of slope made up of clay,silt,uniform sand and uniform sand covered with clay is carried out.The pore-water pressure and water content distribution duo to rainfall infiltration and evaporation is calculated.Then the most dangerous sliding surface is auto searched and its stability factor is calculated through simplified Bishop method.The transient stability of soil slope is evaluated.

关 键 词：降雨入渗 孔隙水压力 安全系数 边坡 

分 类 号：TU441[建筑科学—岩土工程]