On Mechanical Parameters of Colluvial Landslide and Its Disposal Measures
Based on a middle-sized traction landslide in the mountain,the sensitivity of shear strength to stability coefficient was studied by the inverse analysis method.Two sets of parameters of cohesion and internal friction angle were determined by the laboratory test,and effective treatment measures were put forward.The results show that the soil shear strength parameters in the sliding zone obtained by the reverse analysis are more consistent with the deformation of the landslide.The internal friction angle is the most sensitive factor affecting the safety coefficient of landslide stability.The inverse value must be reduced according the actual situation.The control of the landslide should not only implement the support measures,but alse pay attention to the comprehensive drainage measures of the landslide.