Generation of Particle Size Distribution in Fragmentation of Broken Rocks in Bench Blasting
B. R. Rakishev
Satpaev Kazakh National Research Technical University, Almaty, 050013 Republic of Kazakhstan
Keywords: Физическая модель взрывного разрушения пород, ключевые результаты взрыва, зоны интенсивного и пассивного дробления, объемы пород, автоматизированное определение гранулометрического состава пород, программное обеспечение, Physical model of rock blasting, main blasting parameters, intensive and passive fragmentation, rock volumes, automated analysis of particle size distribution, software
Abstract
A physical model is created to describe stage-by-stage fracture of rock mass by deep-hole blasting. The analytical dependences are presented for main parameters of massive blasting. The zones of intensive and passive fragmentation are identified in a blasted bench. The formulas are obtained to calculate volumes of different size particles in these zones. The automated determination procedure of particle size distribution is proposed. The program in Microsoft Visual Studio 2017 environment allows the automated analysis of blasthole pattern in a bench and particle size distribution in broken rock mass depending on initial data.
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