清江水布垭库区马干塘滑坡成因及稳定性分析  

Formation mechanism and stability analysis of Magantang landslide in Shuibuya Reservoir Area of Qingjiang River

作　　者：赵信文[1] 

机构地区：[1]中国地质调查局武汉地质调查中心,湖北武汉430223

出　　处：《人民长江》2011年第3期27-29,48,共4页Yangtze River

基　　金：中国地质调查项目(1212010814008)

摘　　要：为了弄清水布垭库区马干塘滑坡的成因并分析其稳定性,采用野外现场调研、工程地质测绘、工程地质勘察、室内试验等研究方法,并运用极限平衡理论以及结合现阶段变形情况,对滑坡的形成过程和发展趋势进行了研究。结果表明:滑坡体的形成经历了清江河流向下切割、崩塌堆积和清江继续下切、崩塌再次堆积两个阶段;目前,滑坡体处于基本稳定状态,但局部存在次级滑坡的可能。We studied formation mechanism of Magantang landslide in Shuibuya Reservoir Area by means of field investigation,engineering geological mapping,engineering geological investigation,laboratory tests and other methods.And based on limit equilibrium theory and the deformation mechanism,we studied the formation process and develop trend of the landslide.The results show that the formation mechanism of the landslide experienced two stages： the Qingjiang River incised while debris accumulated,and another continued process of incision and accumulation.The stability of the landslide is in a normal condition,however,a secondary landslide may be formed under the influence of reservoir water level fluctuation,which will result in several local landslides.

关 键 词：成因机制 稳定性 蓄水 马干塘滑坡 水布垭水库 

分 类 号：TV698.232[水利工程—水利水电工程]