【摘要】 西南地区山地发育,特别是四川西部、西南部,在这些区域往往由于构造侵蚀、构造剥蚀作用形成了高差达千米的高山区。"5.12"地震后在这些山区形成了大量高危高边坡,对震区某特大型高危土质滑坡区的地形地貌和地质构造进行了详细描述,着重分析了滑坡的破坏机制和影响因素。综合运用参数反演和室内试验等方法确定了滑体和滑带土的物理力学参数,采用滑坡推力法建立了滑坡稳定性分析模型,对潜在滑动带进行了不同工况计算,得出该滑坡欠稳定的结论。更多还原

【Abstract】 The mountain development in southwest is especially in western and Southwestern parts of Sichuan.In these areas,a zone of high mountains is formed by tectonic erosion,and tectonic denudation.After the"5.12"earthquake,a large number of these high-risk high mountain slopes are formed.In this paper,the topography and geological structure in the largest high-risk soil landslide in earthquake zone has been described in detail.The main focuses are on the analyzing of landslide failure mechanism and influencing factors.The sliding body and the sliding soil physical parameters are determined by integrated use of laboratory test parameters inversion and other indoor test methods.A landslide stability analysis model is established with the adoption of landslide thrust method.The potential slips are calculated under different conditions were calculated,and the less stable conclusion of the landslide is gotten.更多还原