Fly rocks in surface mine during the blasting

Frasher, Brahimaj and Dambov, Risto (2018) Fly rocks in surface mine during the blasting. In: XI Expert conference themed: “Technology of underground and surface mining of mineral raw materials” Podeks - Poveks" 18 , 09-11 Nov 2018, Struga, Macedonia.

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Abstract

In this paper are present fly rocks in surface mine during exploitation by blasting. Fly rocks can occur for two reason which are: for reason of stemming and for reason of burden. For reason of stemming fly rocks can occur if leaved small stemming when charging the drilling with explosive or if make the stemming with material by big pieces, for to avoidance fly rocks for this reason, must to leave the stemming according to the calculations and to make stemming with material by piece from 4 to 8 [mm]. For reason of burden, fly rocks can occur for cause of drilling deviation and for cause of cave. For to avoidance fly rocks for this reason, must to make the drilling by the right angle and not to charging drillings by the short burden distance, also not to charge the cave more than is calculated before. Key words: Fly rocks, blasting, drilling, stemming, burden

Item Type: Conference or Workshop Item (Paper)
Subjects: Engineering and Technology > Civil engineering
Engineering and Technology > Materials engineering
Engineering and Technology > Other engineering and technologies
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Risto Dambov
Date Deposited: 03 Dec 2018 13:35
Last Modified: 03 Dec 2018 13:35
URI: http://eprints.ugd.edu.mk/id/eprint/20917

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