Modern Mining ›› 2024, Vol. 40 ›› Issue (06): 63-.
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In order to meet the needs of modern large-scale mining，engineering blasting has gradual⁃
ly tended to be refined，less humanized and intelligent.The precise delay time of the digital electronic deto⁃
nator plays an important role in the deep hole bench blasting project in the open pit mine.Taking the bench
blasting of Shenshan Limestone Mine as the engineering object，the optimal blasting parameters are ex⁃
plored by means of numerical simulation and field test.The UAV technology is used to obtain the surface im⁃
age of the explosive pile and carry out the ore block analysis.Combined with the large hole spacing and small
row spacing millisecond blasting technology，the hole network parameters are adjusted.The test results show
that the unit consumption of explosive can be reduced from 0.45 kg/m3 to 0.35 kg/m3 by increasing the bur⁃
den area of single hole appropriately，and the root phenomenon after blasting can also be reduced，which has
achieved good economic benefits in Shenshan Limestone Mine.
