Study on stability and control measures of high-slope at complex conditions

Based on the research on the geological conditions of State Road 206, the structural plane and characteristics of landslide are studied by the stereographic projection method. Effect factors of landslide are studied, and the trend of C andϕat two conditions (rain conditions and no rain conditions) are also researched. The limit equilibrium method is used to calculate the residual sliding force between soil bodies at the basis of factors study, and the stability of slope is assessed. For the instability of slope, the control measure is bolt combined with protecting wall.