Drilling & Blasting Optimal Parameters and the Results in the Dismemberment of Limestone in Volljak

Year 2016, Volume: 11 Issue: 1, 87 - 91, 30.03.2016

Imer Brahimaj Frashër Brahimaj Shkurte Brahimaj

Abstract

Considering discontents expressed by the companies who exploit limestone
in some quarries in Volljak, aiming for better possible fragmentation of
limestone, and having less output of large pieces and remain with as regular
possible flooring. We have taken the intention to perform a test blasting in
the said zone, with optimal parameters of drilling and blasting. We have
included drilling & blasting parameters in the paperwork based on the calculation,
based on experience and based on the results obtained in this area. After
performing the massive blast, we obtained results that their demands can be
achievable, because the outcome pieces from this blasting were minimal, not
exceeding 3% of the blasted volume. After the loading and transportation of the
blasting material, we can see that the remained floor has a very good flattened
surface. In order to achieve these results, we have implemented connection of
the field with detonating fuse, with millisecond deceleration between rows, and
initiating the field with nonel connector and dynoline. With this initiating
system we have obtained deceleration between rows with immediate initiation of
one drilling row, thus we acquired a consumption of explosive material with
optimal value for this area. This confirms that the mentioned demands are more
of commercial nature, with intention of reducing the cost of drilling and
blasting.

Keywords

Detonation, Initiation, Hole, Detonation Cord, Explosive, Nonel

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