中文摘要：

西南地区因其所处的大地构造位置成为我国地质灾害的高发区域。普格县姚家山滑坡体是一个老滑坡体因地貌塑造、降雨入渗、新构造运动等，产生局部复活后形成的新滑坡体。滑坡体位于川滇南北向构造体系中段，受则木河断裂和螺髻山背斜控制，构成滑床主体的粉砂岩、泥岩及泥灰岩地层，遭受强烈的构造作用和风化作用影响，形成坡面堆积较厚的碎石土，且有完整的黏性土滑带。通过钻孔揭露新滑坡体的滑带埋深8～9 m，滑坡纵向长331 m，横向平均宽252 m，为浅层中型土质滑坡。通过对新滑坡体的滑坡体特征、影响因素、稳定性分析等方面的详细研究，揭示了新滑坡的成因及形成机制，并分析了滑坡体的稳定性控制要素，为滑坡体的工程治理提供可靠的地质依据。

英文摘要：

Area of Southwest China is one of highrisk regions of geologic hazards because of its geotectonic po sition. The Yaojiashan landslide in the Puge county is a new one from part reactivation of old one which was caused by geomorphologic shape, rainfall infiltration and neotectonics. The landslide is located in the midfoot of the Si chuan Yunnan meridional structural system with complete clay slip zone. The slider bed body is consisted of rather thick gravel soil of slope deposit from the stratigraphic of sihstone, mudstone and marl which is controlled by the break of Zumu River the anticline of Luojieshan Mountain and suffered from strong tectonism and weathering. The landslide is a shallow and medium soil one with sliding zone depth （8 9） m, longitudinal length 331 m, mean transverse width 252 m by drilling holes. The research on the feature, influencing factors and stability analysis of new landslide reveals that the cause and formation mechanism, as well as stability control elements, which provides the reliable geological basis of control enineerin of landslide.