ABSTRACT
With opencast-underground combined mining of Yongping coper as the engineering background, the safety effect of charged explosive in loaded carven under the surface blasting is analyzed. Based on the seismic wave data collected from IDTS3850, quantity of explosive and its energy, critical temperature and detonation pressure are calculated theoretically and analyzed, the software ANSYS/ LS-DYNA was applied to simulate the vibration of blasting through building a geological and spatial structure model of cavern and outdoor combined mining floor. Comprehensive analysis of safety effect on explosive in loaded carven under the surface blasting has been done from testing, calculation and numerical simulation results.
