Experimental Study on the Performance of on-site Mixed Emulsion Explosives and Rock Impedance Matching

Experimental Study on the Performance of on-site Mixed Emulsion Explosives and Rock Impedance Matching

Huang Shengsong1, Zhao Mingsheng1,2*, Zhang Yiping1, Zhao Kejie1

1Mining School, Guizhou University, Guiyang 550025, China.
2Guizhou Xinlian Blasting Engineering Limited Corp, Guiyang 550002, China

American Journal of Scientific Research and Essays

The proportion of on-site mixed emulsion explosives in mining is getting higher and higher, in order to better use the explosive performance of mixed explosives to improve energy utilization. Based on the wave impedance theory, the wave impedance of mixed explosives is changed to make rocks The wave impedances are matched to achieve the purpose of improving the blasting effect and reducing the bulk rate. After field test, increasing the sensitizer content within a certain range is beneficial to the improvement of explosive performance. When the explosive sensitizer content is 1.15%, the best matching coefficient of mixed explosive and rock impedance is 2.51, the rock after blasting is large. The block rate is reduced and the rock crushing effect is better. After this matching test, it is shown that it is feasible to improve the blasting performance by adjusting the explosive performance of the explosive by the optimal wave impedance coefficient according to the hardness of the rock, which can provide reference for the peers.

Keywords: Impedance matching coefficient; Explosive performance; Blasting effect

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How to cite this article:
Huang Shengsong, Zhao Mingcheng, Zhang Yiping, Zhao Kejie. Experimental Study on the Performance of on-site Mixed Emulsion Explosives and Rock Impedance Matching. American Journal of Scientific Research and Essays, 2020; 5:26. DOI:10.28933/ajsre-2020-01-2205


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