摘要
边坡失稳是一种常见的工程地质灾害,直接影响了工程的建设与运行安全.本文在详细地质调查的基础上,确定了楞古水电站马河崩塌体边坡的分布范围并分析其变形失稳模式.分别利用SLIDE和ADINA软件对边坡进行稳定性计算,对比计算结果,得出边坡的潜在滑动面及其安全系数,继而对边坡的整体稳定性做出评价.研究结果表明,马河崩塌体基本处于极限平衡状态,在蓄水和地震工况下安全系数明显降低,有沿浅表层发生滑动破坏的可能.
Slope failure is a common engineering geological hazard directly affecting the construction and oper- ation of projects. Based on detailed geological survey, the distribution range and failure mode of Mahe deposit slope are analyzed. SLIDE and ADINA are used to obtain the potential sliding surfaces and safety factors. The computation results from the two kinds of software are compared and stability assessment of the slope is given. The research results indicate that the Mahe collapse masses are in a state of limit equilibrium on the whole; but the safety factor decreases in the reservoir impounding and earthquake conditions. The sliding a- long superficial layer will probably happen.
作者
张楚楚
孙少锐
王帅
唐凯
Zhang Chuchu Sun Shaorui Wang Shuai Tang Kai(College of Earth Science ＆ Engineering, Hohai Univ. , Nanjing 210098, China)
出处
《三峡大学学报（自然科学版）》
CAS
2016年第5期41-45,共5页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科学基金项目(41102162)
关键词
马河崩塌体
极限平衡法
有限单元法
安全系数
稳定性评价
Mahe deposit slope
limit equilibrium methods
finite element method
stability assessment
