马河崩塌体边坡稳定程度敏感性分析  

Sensibility analysis of stability of Mahe deposit slope

作　　者：张楚楚[1] 孙少锐[1] 王帅[1] 唐凯[1] 

机构地区：[1]河海大学地球科学与工程学院,江苏南京211100

出　　处：《河北工程大学学报（自然科学版）》2016年第3期52-56,共5页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：国家自然科学基金资助项目(41102162)

摘　　要：针对雅砻江楞古水电站边坡稳定性问题,以马河崩塌体边坡为例,选取岩体重度、粘聚力、内摩擦角、水位、地震系数为影响因子,以边坡的安全系数为指标,基于均匀设计开展数值试验,对试验结果进行灰关联分析,得出各因素与边坡安全系数之间的关联系数和关联度。研究结果表明,各因素对边坡稳定性的影响大小依次为内摩擦角>水位>地震系数>粘聚力>重度。Lenggu hydropower station is located in alpine valley region of Yalong River. Due to the complex geological environment, the stability problem is sever and it is influenced by numerous fac- tors. With slope safety factor chosen to be the index, the unit weight, cohesion, internal friction an- gle, water level and seismic coefficient were selected to be the factors. Then, the numerical experi- ments based on uniform design were done and the results were analyzed with grey correlation theory. The result show that the sequence of magnitude of correlation with slope stability is ： internal friction angle 〉 water level 〉 seismic coefficient 〉 cohesion 〉 unit weight.

关 键 词：马河崩塌体 均匀设计 灰关联分析 敏感性分析 

分 类 号：TV223[水利工程—水工结构工程]