A comprehensive evaluation method of bench blast performance in open-pit mine

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Abstract

In blasting operation, some undesirable impacts, such as fly-rock, fragmentation, and back break, are induced. If the blasting design is not optimized, these mentioned impacts would reduce the blasting efficiency. To improve and optimize the blast design, blasting effect evaluation is essential. Due to the complexity of interactions among blasting parameters, empirical methods may not be appropriate for blast design optimization. A two-level mathematical model based on fuzzy mathematics, is proposed in this work. In total, 11 typical parameters were chosen and classified into three groups. The blasting effect is evaluated from three aspects, and then the comprehensive evaluation is given. A blasting effect evaluation system was developed based on the mentioned method on the platform of VC++. Some other techniques, such as image processing, were integrated into the system, which allowed for obtaining all of the parameters rapidly and conveniently. The system was applied in practical bench blast engineering. The results obtained from the system can provide effective information for the optimization of the next blast design.

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Liu, M., Liu, J., Zhen, M., Zhao, F., Xiao, Z., Shan, P., … Liu, Z. (2020). A comprehensive evaluation method of bench blast performance in open-pit mine. Applied Sciences (Switzerland), 10(16). https://doi.org/10.3390/APP10165398

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