RESEARCH OF AIR MOTION IN CAVING ZONES OF THE KRYVBASS MINES

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Geo-Technical Mechanics, 2014, Issue 117

UDC 622.465.3

Author:

Evstratenko L.I., Doctoral Student (State H E I «KNU»)

Abstract.

In the course of the ore extraction from deep horizons, efficiency of ventilation system is under a strong impact of aerodynamically active zones of caving. In these circumstances, a evaluation of reliable parameters of  seepages and air flow regimes in the porous media of the mine caving zones is critical for making proper decisions on improving ventilation efficiency in the deep mines.

The article presents evaluated parameters of seepages and air flow regimes in the porous media of the mine caving zones. It is shown that at gas filtration into the porous media, it would be more reasonable to define pressure loss by binomial formula with taking into account parameters of the rock where gas moves. An empirical relationship between parameter of porous medium turbulence and permeability coefficient is described.

Keywords:

mine, collapse zone, porous medium, gas filtration.

References:

1. Ushakov, K. Z. (2004), Gazovayadinamikashakht [Gas dynamics mines], Izd. Moscow state mining University, Moskov, Russia.

2. Pyatibrat, V.P. (2002), Podzemnaya gidromechanika [Underground hydromechanics], UGTU, Ukhta, Russia.

3. Shevelev, G.A. and Perepelitsa, V.G. (2010), Filtratsiya gaza v shakhtakh [Filtering gas in mines], Naukova Dumka, Kiev, Ukraine.

4. Oshmyansky, I.B. and Yevstratenko, L.I. (2014), “substantiation of parameters of filtration flows in mining collapsed areas”, Balkema, CRC Press: Progressive Technologies of Coal, Coalbed Methane, and Ores Mining ,Taylor & Francis Group, London, pp. 373 – 378.

5. Chernyh, A.D., Andreev, B.N. and Oshmyansky, I.B. (2010), Otkryto-pogzemnaya razrabotka rudnykh mestorohzdeniy [Open-pit and underground development of mineral deposits], Techika, Kiev, Ukraine.

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About the author:

Evstratenko LiliaIgorevna, Doctoral Student, Department of mine aerology and labour protection, State Higher Education Institution «National University of Krivoy Rog» (SHEI «KNU»), Krivoy Rog, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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