ISSN 2594-357X
20° Simpósio de Mineração — vol. 20, num.20 (2019)
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Abstract
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
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
Keywords
Rock blasting; Structural geology; Geomechanical classification; Kuz-Ram methodology
Rock blasting; Structural geology; Geomechanical classification; Kuz-Ram methodology
How to refer
Mariz, Jorge Luiz Valença;
Rocha, Suelen Silva;
Filinkoski, Gabriel;
Silva, Daniela Mota Paschoal Veloso da;
Barros, Filipe Brito Marinho de;
Lima, Marinésio Pinheiro de;
Souza, Júlio César de.
ANALYSIS OF INFLUENCE OF STRUCTURAL GEOLOGY AND GEOMECHANICAL IN THE BLASTING ROCKS PREDICTION
,
p. 311-323.
In: 20° Simpósio de Mineração,
São Paulo,
2019.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-33774
