Selecting the optimal drilling and blasting design for underground excavations in underground <br> copper mine “Jama” Bor

Dejan Bogdanović; Goran Stojanović

doi:10.5937/PodRad1833053B

Dejan Bogdanović University of Belgrade - Technical Faculty in Bor
Goran Stojanović University "Union-Nikola Tesla" Belgrade – Faculty of applied sciences

DOI: https://doi.org/10.5937/PodRad1833053B

Keywords: drilling; blasting; underground excavations; AHP;

Abstract

Drilling and blasting operations are very important part of underground excavation design. They should be performed in accordance with some criteria, such as fragmentation, excavation stability and cost. In the paper are considered three drilling and blasting designs in order to reach the optimal one. To do so, all the criteria should be simultaneously considered in the analysis. For analysis is used Analytic Hierarchy Process – AHP method. Using AHP method, drilling and blasting patterns in underground copper mine “Jama” Bor are investigated and analysed. According to the obtained results, alternative 2 with contour drilling and blasting pattern was selected to be the best decision. Application of this alternative comparatively satisfies both fragmentation and excavation stability.

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