摘要
库水和降雨是三峡库区滑坡失稳的主要触发因素。以库区石榴树包滑坡为例,基于饱和非饱和渗流理论,采用有限元方法和极限平衡方法,对该滑坡在库水位骤降和降雨强度共同作用下的地下水渗流场变化及稳定性进行计算。结果表明,降雨及降雨与库水骤降共同作用对该滑坡稳定均为不利工况。
Water and rainfall are triggers of slope instability in the Three Gorges reservoir. The finite element method and the limit equilibrium method are used to study Shiliushubao Landslide, as an example, based on the saturated-unsaturated seepage theory. The stability calculations under different work conditions show that rainfall, as well as the common effects of rainfall and water level rapid drawdown, is adverse to stability.
出处
《地质灾害与环境保护》
2013年第2期70-76,共7页
Journal of Geological Hazards and Environment Preservation
关键词
库水波动
降雨
渗流
数值模拟
稳定性
reservoir water fluctuation
rainfall
seepage
numerical simulation
stability
