Research of Caving Methods Based on Discrete Element

The paper introduced three kinds of different methods of caving methods,namely single-interval caving,single-order caving and multi-interval caving.It used discrete element PFC3D software to simulate the three kinds of caving methods, obtained the simulation results,and analyzed advantages and disadvantages of the three kinds of different methods based on the simulation results.It also proposed some suggestions for improvement of caving methods.