白龙江碧口水电站孟家干沟滑坡形成机制及其稳定性分析  

The Formation Mechanism and Stability Analysis of Mengjiagangou Landslide of Bikou Hydropower Station on the Bailong River

作　　者：张良喜[1,2,3] 张海泉[1,2] 赵其华[1,2] 任光明[1,2] 

机构地区：[1]地质灾害防治与地质环境保护国家重点实验室(成都理工大学),成都610059 [2]成都理工大学环境与土木工程学院,成都610059 [3]四川省地质矿产勘查开发局攀西地质队,四川西昌615000

出　　处：《中国农村水利水电》2013年第1期160-163,167,共5页China Rural Water and Hydropower

基　　金：长江学者和创新团队发展计划资助(IRT0812);国家重点基础研究发展计划(2011CB013501)

摘　　要：孟家干沟滑坡为岩质边坡,前缘变形严重,坡体表面存在大量变形迹象。在详细调查研究滑坡形成的地质环境条件、滑坡基本特征的基础上,分析评价了该滑坡的形成机制;通过数值模拟分析了坡脚开挖对边坡稳定性的影响;并利用极限平衡法评价了多种工况下稳定性。结果表明,该滑坡在天然条件下已处于欠稳定状态,在暴雨或地震条件下,可能会发生局部失稳。Mengjiagangou Landslide is a rock slope. There is a great deal of deformation of the slope surface. Based on the analysis of the geological environmental conditions and the formation of the landslide, this paper analyzes and evaluates the formation mechanism of the landslide. By using the limit equilibrium method under a variety of conditions, this paper also analyses its assessment of stability. Results show that the landslide in owea steady state under natural conditions and even partial-slippage will happen in times of a rainstorm or an earthquake.

关 键 词：滑坡 变形 形成机制 稳定性分析 

分 类 号：P642.22[天文地球—工程地质学]