摘要
研究以铜仁市钟鼓台滑坡为例,采用GeoStudio数值模拟软件中SLOPE/W模块与SEEP/W模块对边坡进行稳定性模拟计算。选取了极端暴雨条件下的三个工况进行模拟,分析了其在不同降雨的工况下的稳定性。研究结果表明,水是导致滑坡的诱导因素,在计算出边坡无降雨条件下的稳定系数的情况下进行降雨工况模拟,在连续降雨条件下,钟鼓台边坡安全系数随降雨时间的增加而降低,且在前4h降低幅度很大,之后趋于平稳。
Taking Zhonggutai landslide in Tongren as an example,the SLOPE/W module and SEEP/W module in GeoStudio numerical simulation software were used to calculate the stability of the slope.Three working conditions with extreme rainfall were selected for simulation,and the stability under different rainfall conditions was analyzed.The results showed that water was the inducing factor of landslide.The stability coefficient of the slope without rainfall was calculated,then the rainfall conditions were simulated.Under continuous rainfall conditions,the safety coefficient of the slope decreased with the increase of rainfall time,and the decrease degree was large in the first 4 h,and then stabilized.
作者
刘渊钊
李宗发
LIU Yuanzhao;LI Zongfa(College of Resource and Environmental Engineering,Guizhou University,Guiyang 550025,China;No.111 Geological Brigade,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Guiyang 550081,China;Guizhou Geological Environment Monitoring Institute,Guiyang 550081,China)
出处
《贵州科学》
2019年第6期84-87,共4页
Guizhou Science
基金
贵州省科技计划(社会攻关计划)项目(黔科合[2016]支撑2843)
