清江水布垭库区猪卜笼滑坡形成机制及稳定性分析  

FORMATION MECHANISM AND STABILITY ANALYSIS OF ZHUBULONG LANDSLIDE IN SHUIBUYA RESERVOIR AREA OF QINGJIANG RIVER

作　　者：章昱[1] 谭建民[1] 

机构地区：[1]中国地质调查局武汉地质调查中心,武汉430205

出　　处：《地质灾害与环境保护》2015年第4期31-35,共5页Journal of Geological Hazards and Environment Preservation

摘　　要：猪卜笼滑坡位于水布垭库区支锁河左岸,为典型松散堆积体滑坡,因水库蓄水造成前缘局部岩土体变形失稳。通过分析滑坡工程地质条件、形态特征、物质结构组成及变形特征,查明了该滑坡形成机制,并运用极限平衡理论定量评价其稳定性。分析表明,滑坡在内外动力耦合作用下,大致历经崩塌、堆积、加载和滑移过程,形成现今堆积形态。目前滑坡处于基本稳定状态。Zhubulong landslide is a typical loose deposits landslide, which is located on the left bank of Zhisuo river of Shuibuya reservoir. The deformation and instability of rock and soil mass are due to reservoir impounding, which occur at the front edge of landslide. This paper found out the formation mechanism of the landslide by studying on the engineering ge- ological conditions, the morphological characteristics, the structure of matter, and the de- formation characteristics of the landslide, and evaluated the stability with the limit equilibri- um theory. The analysis shows that, the accumulation form of the landslide experienced col- lapse, accumulate, load and slide process, caused by the coupling endogenic and exogenic geological forces. At present, the landslide is in stable state.

关 键 词：水布垭库区 滑坡 松散堆积体 形成机制 稳定性 

分 类 号：P642.22[天文地球—工程地质学]