›› 1991, Vol. 12 ›› Issue (2): 49-56.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical Technique in Energy Analysis of Rock Blasting

Zhang Qi   

  • Published:1991-02-15

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Abstract: Numerical technique of determining utilization coefficeint of explosion energy is given through mechanical analysis on explosion of the spherical charge in rocks. The computing examples showed that the utilization coefficeint of energy is about 50% in the blasting mainly for rupturing rocks, and the energy transmission ratio is about 40%. In addition, the closer wave impedances of both rock and explosive, the higher the utilization coefficeint of energy.

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