库水波动与降雨作用下石榴树包滑坡稳定性分析  

STABILITY OF SHILIUSHUBAO LANDSLIDE WITH WATER LEVEL FLUCTUATION OF THE RESERVOIR AND RAINFALL

作　　者：杨建英[1] 柯传芳[2] 吴润泽[1] 付贵权[1] 周霞 

机构地区：[1]三峡库区地质灾害防治工作指挥部,宜昌443002 [2]三峡大学湖北省防灾减灾重点实验室,宜昌443002 [3]湖北省地质环境总站,武汉434020

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

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.

关 键 词：库水波动 降雨 渗流 数值模拟 稳定性 

分 类 号：P642.22[天文地球—工程地质学] TU457[天文地球—地质矿产勘探]