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Determination of technology parameters of the thick steep gassy seams mining with sublevel caving and coal discharge mining system

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Category: Mining

Last Updated on 14 January 2015

Published on 14 January 2015

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Authors:

O.I. Kazanin, Dr. Sci. (Tech.), Professor, National University of Mineral Resources (University of Mines), Saint-Petersburg, Russia

A.A. Sidorenko, Cand. Sci. (Tech.), Associate. Professor, National University of Mineral Resources (University of Mines), Saint-Petersburg, Russia

V.V. Sementsov, National University of Mineral Resources (University of Mines), Postgraduate Student, Saint-Petersburg, Russia

Abstract:

Purpose. Choice and determination of the sublevel caving and coal discharge mining system parameters withuse of the mechanized roof support for thick steep coal seams of Prokopievsk-Kiselevsk deposit in Kuzbass.

Methodology. The complex method, which includes analysis and summary of theory and practice of the effective and safe thick steep coal seams mining; methane emission and rock mass statement field studies at the mining sections of Kiselevskaya mine; experimental-analytical researches of dependencies between mining system parameters and geomechanical as well as aero- gas- dynamical processes at the mining sections. 

Findings. The advantage of mining systems with 3 sublevel entries has been proved. The rational parameters of the recommended technology that provide efficient and safe thick steep gassy coal seams mining have been determined for Prokopievsk-Kiselevsk deposit in Kuzbass.

Originality. The features in stress-strain rock mass statement changes around underground entries during thick steep seams mining by sublevel caving and coal discharge mining system have been determined. The dependencies between minimum stable pillars sizes and seam thickness have been obtained. The equation, which describes dependence between specific cost of section mining and sublevel parameters as well as seam thickness, has been determined.

Practical value. The recommendations conserning determination of the mining system rational parameters for various geological and technical conditions of the deeply inclined and steep coal seams of Prokopievsk-Kiselevsk deposit as well as choosing of the place of sublevel entries location and entries parameters have been developed. The recommendations about ventilation parameters of coal face area in various mining situations and various stages of sublevel mining are given. The area of rational use of the developed mining system with sublevel caving and coal discharge has been determined. 

References:

1. Филатов Ю.М. О проблемах безопасности отработки Прокопьевско-Киселевского месторождения / Ю.М. Филатов // Вестник научного центра по безопасности работ в угольной промышленности. – 2010. – №2. – С.173–185.

Filatov, Yu.M. (2010), “Safety problems of Prokopievsk-Kiselevsk deposit mining”, Bulletin of Coal Industry Safety Research Center, no. 2, pp. 173–185.

2. Филатов Ю.М. О совершенствовании технологии ведения очистных работ на мощных крутонаклонных пластах Прокопьевско-Киселевского района Кузбасса /  Ю.М. Филатов // Вестник научного центра по безопасности работ в угольной промышленности. – 2010. –№2. – С.186–194.

Filatov, Yu.M. (2010), “Mining Technology Advancing for Thick Deeply Inclined Seams of the Prokopievsk-Kiselevsk Region of Kuzbass”, Bulletin of Coal Industry Safety Research Center, no. 2, pp. 186–194.

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Sologub, O.V. and Kobylkin, S.S. (2009), “Review of the available software for simulation of the underground construction ventilation”, Mining Informational and Analytical Bulletin, no.13, pp. 115–132.

4. Бедарев Н.Т. Обоснование параметров разработки мощных крутых пластов системами с подэтажным обрушением на основе физического моделирования / Н.Т. Бедарев, С.Г. Костюк, В.В. Семенцов // Горный информационно-аналитический бюллетень. – 2012. – № 4. – С. 5–10.

Bedarev, N.T., Kostyuk, S.G. and Sementsov, V.V. (2012), “Determination of Parameters of the Thick Steep Seams Sublevel Caving Mining System on the Base of Physical Modeling”, Mining Informational and Analytical Bulletin, no. 4, pp. 5–10.

5. Казанин О.И. Геомеханическое обоснование параметров разработки мощных крутых пластов системами с подэтажным обрушением и выпуском угля в условиях Прокопьевско-Киселевского месторождения / О.И. Казанин, А.А. Сидоренко, В.В. Семенцов // Горный информационно-аналитический бюллетень. – 2013. – № 4. – С. 15–21.

Kazanin, O.I., Sidorenko, A.A. and Sementsov, V.V. (2013), “Geomechanical Determination of Parameters of the Thick Steep Seams Sublevel Caving and Coal Discharge Mining System for Prokopievsk-Kiselevsk Deposit”, Mining Informational and Analytical Bulletin, no. 4, pp. 15–21.

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