摘要
在收集开县地质结构、地形地貌以及水文地质等资料的基础上,研究了开县南山滑坡的滑体、滑带、滑床特征,得出其为一典型的顺层岩质滑坡;并分析了该顺层岩质滑坡的形成机制。而后确定权重因子利用极限平衡法计算得知,滑坡目前基本稳定,但在暴雨和地震工况下滑坡处于不稳定状态。通过敏感性分析可知,内摩擦角φ值是影响滑坡稳定性最为敏感的因素,必须治理。
Based on the collected materials with respect to geologic structure, topography and hydrogeology of Kaixian County, the characteristics of sliding mass, sliding band and sliding bed at Nanshan Landslide in the County is studied, and then it is concluded to be a typical bedding rock landslide and its genetic mechanism is also analyzed. By use of weight factors and limit equilibrium method, the landslide is known to be stable basically but instable in case of heavy rain and seism. Through sensibility analysis, it is known that the angle ~o of internal friction is the most sensitive factor affecting the landslide stability, which had to be treated.
出处
《路基工程》
2012年第3期146-150,共5页
Subgrade Engineering
关键词
南山滑坡
滑坡特征
影响因素
成因机制
极限平衡法
内摩擦角
稳定性
Nanshan rock landslide
landslide characteristics
affecting factor
genetic mechanism
limitequilibrium method
angle of internal friction
stability
