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Journal of Mining and Metallurgy A: Mining
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2008, vol. 44, br. 1, str. 9-16
Blasting development at drifting in underground coal mines
(naslov ne postoji na srpskom)
aUniverzitet u Beogradu, Tehnički fakultet u Boru
bMegatrend Univerzitet, Fakultet za menadžment, Zaječar

e-adresapan@tf.bor.ac.yu
Ključne reči: blasting; underground coal mines; drifting; methane explosives
Sažetak
(ne postoji na srpskom)
Blasting in drifting at underground coal mines has to meet numerous requirements in safety and techno - economic efficiency. Meeting these requirements is possible only in case of choosing optimal parameters for actual conditions of blasting. This paper shows basic principles for determination of blasting parameters in drifting. Limitations in technology and regulations cause difficulties in determination of explosive type, blast hole loading, layout and length of blast holes, initiation schemes. After the analysis of currently applied blasting technology, this paper suggests changed blasting technology, based on theoretical and practical knowledge and experimental work in four Serbian underground coal mines: Senjski rudnik, Stavalj, Jelovac and Lubnica. Main parameters and gained results of new blasting technology for first two mines are presented. Blasting technology was changed through blast holes layout, load weights, initiation schemes, blast hole length and quality of blast hole sealing. Results have shown improvements in explosive consumption and efficiency of blasting. Besides, percentage of coarse fraction has increased, thus improving overall economic results.
Reference
Holozan, A. (1985) Considerations on methane explosives blasting in Yugoslavia. Explosives, drilling, blasting, Belgrade, No 4, Rudex
Milanović, R. (2006) Improvement of drifting technology with drilling and blasting in underground coal mines. Bor: Technical Faculty, Master thesis
Pantović, R., Milić, V., Vusović, N. (2006) Analysis of blasting technology at drifting in Serbian underground coal mines. u: Symposium in the field of mining: Drilling and Blasting (IV), Proceedings, Ohrid, str. 184-191
Pantović, R., Milić, V., Vidanović, N., Tokalić, R. (2006) Research study on applied blasting methods in underground coal mines. Bor: Technical Faculty
Veselinović, V. (1981) Importance of methane explosive type selection in order to increase safety and productivity in underground coal mines (Serbian). Blasting, Belgrade, No 2/81, Rudex
 

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jezik rada: engleski
vrsta rada: neklasifikovan
objavljen u SCIndeksu: 25.01.2009.

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