PDF | Predicting rock fragmentation is essential to optimize the blasting rock operation. Fragmentation depends on many parameters, such as structural and geomechanical properties of rocky massif, blast plan geometry of detonations and properties of explosives. In this context, the objective of this work is to predict fragmentation by simulation of Mineração Megaípe blasting rock considering the structural and geomechanical characteristics inherent to the rocky massif formation through the Kuz-Ram methodology. The methodology consisted in the survey of the geometric properties of the visible discontinuities on the face of the bench, accomplishment of the geomechanical classification through the Rock Mass Rating (RMR) and Q systems and application of the results to prediction of the granulometric distribution of fragmentation. It was obtained as a result of the simulation that about 90% of the fragmented material should pass through the gap of the primary crusher available in the quarry, in addition to favorable results for analyzes of operational slope stability conditions
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