Stability analysis method for complex anti-inclined rock slopes

For the complex anti-inclined rock slope with many groups of fissures, considering the block and parent rock isn't completely separated by fissures, a stability analysis method for it is proposed. At first, based on the rock layer's bearing mode and contact relationship, a rock layer's deflection calculation method is established. Then taking the rock layer's deflection for relation variables, the calculation equations are built. Through solving the equations, the interlayer's load can be obtained. So the loads on the rock block's fissures are quantified; and accordingly a fracture mechanics model is established. Through fracture mechanics, rock block's stability analysis method is established. At last, through a case study, it is shown that the results calculated by the proposed method agree well with the actual situations.