摘要
以红黏土边坡为研究对象,通过GeoStudio软件中的VADOSE/W和SEEP/W模块对其在不同气候条件作用下的渗流和边坡稳定性进行了计算。分析了不同降雨强度、不同蒸发强度、不同持时及循环作用对边坡稳定性的影响。结果表明,降雨、蒸发均是影响边坡稳定性的重要因素。当降雨强度小于土体渗透系数时,边坡安全系数随着降雨强度的增大而减小;边坡安全系数随着土体蒸发量的增大而增大;当边坡经干湿循环作用后,其安全系数呈现出降低的趋势。
Taking the red clay slope as the research object,the seepage and slope stability under different climatic conditions were calculated by VADOSE/W and SEEP/W modules in GeoStudio software. The effects of different rainfall intensity,different evaporation intensity,different holding time and circulation on slope stability were analyzed. The results showed that both rainfall and evaporation were important factors affecting the slope stability. The slope safety coefficient decreases with the increase of rainfall intensity when the rainfall intensity was less than the soil permeability coefficient;the slope safety factor increases with the increase of soil evaporation when the slope was wet-dry after the safety factor showed a downward trend.
作者
何松
薛凯喜
常留成
谭保华
郑志洪
HE Song;XUE Kaixi;CHANG Liucheng;TAN Baohua;ZHENG Zhihong(School of Civil and Architecture Engineering, East China University of Technology, Nanchang Jiangxi 330013, China)
出处
《工程质量》
2018年第5期35-39,共5页
Construction Quality
基金
国家自然科学基金项目:极端降雨作用下红壤土坡响应试验与灾变机理研究(41462011)
关键词
红黏土
气候
边坡稳定
red clay
climate
slope stability
