Stability Analysis for Bedded Rock Slope with Effect of Contact

Structure stability of bedded rock slopes are determined by material characteristic of rock blocks and geometrical non-linearity of the discontinuous interfaces between the rock blocks. Different dip angle of the similar slopes are with different safety factors. In this paper, the discrete element method is adopted for calculation and the common plane method for contact surface searched, and the mathematical model is reviewed. Both states of calculation mode are adopted to analysis and compare, one considers the material elastic-plasticity of blocks of rock slope only, in the contrast, the other introduces the geometrical non-linearity to calculation model and the safety factor is less than the counterpart of first state.