舟曲锁儿头滑坡特征及影响因素分析  

Analysis on characteristics and influencing factors of Suoertou landslide in Zhouqu

作　　者：王秀丽[1,2] 金兆鑫[1,2] 董文燕[1,2] 任永忠[1,2] 

机构地区：[1]兰州理工大学土木工程学院,甘肃兰州730050 [2]兰州理工大学西部土木工程防灾减灾教育部工程研究中心,甘肃兰州730050

出　　处：《四川建筑科学研究》2016年第1期60-64,共5页Sichuan Building Science

基　　金：国家科技支撑项目(2011BAK12B07)

摘　　要：以舟曲锁儿头滑坡为工程背景,在对锁儿头滑坡进行详细地质勘探、地形地貌调查的基础上,阐述了锁儿头滑坡的特征和稳定性影响因素,并利用岩土分析软件FLAC^(3D)进行了滑带土黏聚力c、内摩擦角φ、滑体重度γ值对滑坡稳定敏感性影响的数值模拟分析。分析结果表明:φ值的变化对滑坡稳定性影响更为显著,φ值敏感程度是c值的近7倍,敏感性依次为φ>γ>c。Taking the landslide of Suoertou in Zhouqu as an engineering background,and based on the detailed geological and topography survey for it,this paper describes the features and the factors affecting stability for this landslide. Using the geotechnical analysis software FLAC^（3D）to simulate and analysis the sensitivity of sliding zone＇s cohesion c,angel of internal friction φ and gravity of sliding mass γ for landslide＇s stability. The results show that the influence of φ on the stability of landslide is more remarkable. It＇s sensitive degree is nearly 7 times of c. The sensitivity is φ γ c.

关 键 词：锁儿头滑坡 FLAC3D 黏聚力 内摩擦角 滑体重度 敏感性 

分 类 号：TU398[建筑科学—结构工程]