Study on the effect of explosive properties on blasting seismic wave propagation and energy attenuation law

In order to explore the effect of explosive properties on blasting seismic wave propagation and energy attenuation law, so as to better control the blasting vibration and improve the energy utilization rate of explosive. Combined with the blasting vibration related data collected at the site of an open-pit mine, from the two perspectives of peak particle velocity of blasting vibration and energy of blasting seismic wave, blasting seismic wave propagation and energy attenuation law under the conditions of rock powdered emulsion explosive and modified ammonium oil explosive are compared and analyzed by using the Sadovsky Formula and wavelet packet analysis method. The results show that in the same rock medium, the peak particle velocity of blasting vibration and the attenuation coefficient of energy of blasting seismic wave generated by the two explosives are not much different. The peak particle velocity of blasting vibration produced by rock powdered emulsion explosives with high wave impedance is relatively low, and the energy of blasting seismic waves is relatively high. The percentages of total energy converted into blasting vibration energy of the two performance explosives are 6.701% and 5.079%, respectively, and the energy utilization rate of high-performance rock powdered emulsion explosives is relatively low. The research results have certain guiding significance for the selection of blasting explosives in mine production, and enrich the means and methods of vibration reduction in engineering practice.