从易滑地层、断层和结构面等几个方面分析了谭家坪滑坡的形成条件,在此基础上详细地分析了谭家坪滑坡的变形破坏机理,并对谭家坪滑坡的稳定性作了评价与预测,研究表明,谭家坪老滑坡是由于河流侵蚀作用加剧、河谷深切、岩体内部构造残余应力释放、回弹、松弛,导致卸荷裂隙生成和软弱结构面贯通,加之水动力作用强烈,当剪应力大于垂向应力的情况下而形成的;白岩沟滑坡和白水沟滑坡则是谭家坪老滑坡的局部复活。 The formation conditions of Tanjiaping landslide are analyzed from several aspects, such as slippery strata, faults and structural plane. On this basis, the deformation and failure mechanism of Tanjiaping landslide are analyzed in detail. The stability and stability of Tanjiaping landslide are also evaluated and studied. The results show that the Tanjiaping Old Landslide is caused by the aggravating of the river erosion, the deep valleys, the release of residual stress in the internal structure of the rock mass, the rebound and relaxation, leading to the formation of the unloading fissures and the weak structural surface penetration. In addition, when the hydrodynamic force is strong, Formed under the condition of stress; the Baiyangou landslide and the Baishuigou landslide are the partial resurrections of the Tanjiaping Old Landslide.