摘要：Based on the secondary development of LS-DYNA, smoothed particle hydrodynamics(SPH) method is implemented into the blasting vibration method. A method of SPH used in the near zone and FEM used in the far zone is proposed. Dynamic effect of deep hole bench blasting is simulated with this method based on the Specific engineering example. The results show that SPH-FEM method could simulate the large deformation in the near zone. The comparison between blasting vibration monitoring and numerical results demonstrate that SPH-FEM method could forecast the blasting vibration and dynamic response in far zone. The mode is then used to assess the blasting seismic wave passing through the cavity adjacent to upper bench blasting. The results show that the peak particle velocity of measuring points above the mined-out area have presented the obvious amplification phenomenon, owing to wave reflection from the cavity which is about 5 m underneath the ground surface.
