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.
Highlights
The bench blast has been widely applied in many fields, such as mining engineering and hydraulic tunnel excavation
Due to the complexity of interactions among blasting parameters, empirical methods may not be appropriate for blast design optimization, but the fuzzy model can cope with the complexity of complicated systems in a flexible and reliable way
Blasting effect evaluation is very necessary for blast design
Summary
Mingqing Liu 1,2,3 , Jun Liu 1,2,3, *, Mengyang Zhen 1,2,3 , Futian Zhao 1,2,3 , Zhimin Xiao 1,2,3 , Peng Shan 4 , Yue Wang 1,2,3 , Chen Ou 1,2,3 , Haowen Zheng 1,2,3 and Zheng Liu 1,2,3. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China
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