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CALCULATION OF DRILLING AND BLASTING PARAMETERS FOR QUARRY ''DOBRNJA'' NEAR BANJA LUKA

By
Žarko Kovačević ,
Žarko Kovačević

Rudarski fakultet Prijedor, University of Banja Luka, Banja Luka, Bosnia and Herzegovina

Miodrag Čelebić ,
Miodrag Čelebić

Rudarski fakultet Prijedor, University of Banja Luka, Banja Luka, Bosnia and Herzegovina

Dražena Tošić
Dražena Tošić

Rudarski fakultet Prijedor, University of Banja Luka, Banja Luka, Bosnia and Herzegovina

Abstract

Using of explosives in modern mining is very important for the good, efficient and rational organization for obtaining of solid minerals, especially in the exploitation of mineral resources on mines with large capacities. Technological phases of drilling and blasting in the exploitation process are very important in this case, and the analysis in this paper, because specific working environment and technical construction-limestone, where performance and capacities for further technological stages largely depends on the granularity of blasted materials (capacities of bulldozers, capacities of loadersexcavators, capacities of trucks and equipment for stone crushing and grinding). Objective of this paper is to get the best drilling and blasting parameters with different combinations of explosives, to get an optimum combination that will be continusly used.

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