Журналы →  Eurasian mining →  2020 →  №2 →  Назад

DEVELOPMENT OF DEPOSITS
Название Classification of protective pillars toward higher safety and innovation in room-and-pillar coal mining
DOI 10.17580/em.2020.02.06
Автор Prokopenko S. A., Sementsov V. V., Dobrovolsky M. S., Nifanov E. V.
Информация об авторе

Tomsk Polytechnic University, Tomsk, Russia:

Prokopenko S. A., Doctor of Engineering Sciences, Professor, sibgp@mail.ru

 

Science Center VostNII, Kemerovo, Russia:
Sementsov V. V., Head of Laboratory of Geomechanics in Mining, Candidate of Engineering Sciences
Dobrovolsky M. S., Senior Researcher
Nifanov E. V., Researcher at Laboratory of Geomechanics in Mining

Реферат

During room-and-pillar mining, protective pillars of coal are usually left standing. The protective pillars differ in shape, size, process properties and extractability ratios of coal. The authors propose a classification of the protective pillars with respect to their structure and shape in order to estimate and predict their properties. The extractability ratios of coal are calculated for the initial rib pillars and panels at different final shapes of protective pillars. The protective pillars are ranked with respects to the coal extractability ratios. Such systematization of pillars enables selecting the best engineering solutions and innovative improvement of room-and-pillar mining in specific geological conditions toward enhanced safety and efficiency of underground coal production.

The article is prepared in the framework of the Competitiveness Enhancement Program of the Tomsk Polytechnic University.

Ключевые слова Mine, room-and-pillar mining, rib pillar, protective pillar, cut, cutter–loader, extractability ratio, losses, classification, shape
Библиографический список

1. Yakovlev D. V., Baskakov V. P., Rozembaum M. A., Kalinin S. I. On shortwall mining of bump hazardous coal beds. Ugol. 2015. No. 7. pp. 13–16.
2. Baskakov V. P., Rosenbaum M. A., Kalinin S. L., Sementsov V. V., Dobrovolskiy M. S. Thick seam mining unsafe gasdynamic, system short working faces. Ugol. 2015. No. 11. pp. 17–20.
3. Cherepov A. A., Shiryaev S. N., Kulak V. Yu. Stress and strain distribution in geomass under room-and-pillar mining of a thick gently dipping coal bed. GIAB. 2017. No. 9. pp. 170–178.
4. Rockburst hazard analysis and recommended mitigation activities. Size optimization of rib pillars. R&D Report. Project Manager S. I. Kalinin. Prokopyevsk, 2015. 214 p.
5. Tatsienko V. P. Development and scientific substantiation of shortwall mining flowcharts for gently dipping and inclined coal seams in Kuzbass mines. Synopsis of Doctor of Engineering Sciences Thesis. Moscow, 2003. 42 p
6. Baskakov V. P., Igishev V. G., Sementsov V. V., Dobrovolskiy M. S. Insulation used chamber at coal mining system of short working faces. Ugol. 2016. No. 4. pp. 44–47.
7. Sementsov V. V., Dobrovolsky M. S., Nifanov E. V., Shabalin M. P. Application of the shortwall face system when developing coal seams prone to dynamic phenomena. Vestnik NTS VostNII. 2017. No. 2. pp. 27–31.
8. Sementsov V. V., Dobrovolskiy M. S., Nifanov E. V., Shabalin M. P., Prokopenko S. A. Investigation of the technologies for coal pillar extraction during room-and-pillar mining in russian mines. Review. Vestnik NTS VostNII. 2018. No. 4. pp. 5–23.
9. Prokopenko S. A., Ludzish V. S., Li A. A. Recycling possibilities for reducing waste from cutters on combined cutter-loaders and road builders. Waste Management & Research. 2017. Vol. 35(12). pp.1278–1284. DOI: 10.1177/0734242X17731154
10. Prokopenko S. A., Sementsov V. V., Dobrovolsky M. S. Technology of extended pillar recovery in room and pillar mining in leading coal producing countries. Review. Eurasian Mining. 2019. No. 1. pp. 21–25. DOI: 10.17580/em.2019.01.05
11. Wilson H. G. Mobile Roof Support for Retreat Mining. Proceedings of 10th International Conference on Ground Control in Mining. Morgantown, WV, June 10-12, 1991. Dept. of Min. Eng., WV Univ., 1991. pp. 103–114.
12. Lind G. H. Key success elements of coal pillar extraction in New South Wales. The Journal of The South African Institute of Mining and Metallurgy. 2002. pp. 199–205.
13. Mark C., Chase F. E. Analysis of retreat mining pillar stability (ARMPS). Proceedings of Seminar on New Technology for Ground Control in Retreat Mining. Pittsburgh. U.S. Bureau of Mines, 1997. pp. 17–34.
14. McTyer K., Sutherland T. The Duncan Method of Partial Pillar Extraction at Tasman Mine. 11th Underground Coal Operators’ Conference. University of Wollongong & the Australasian Institute of Mining and Metallurgy, 2011. pp. 8–15.
15. Mark C., Zelanko, J. Sizing of final stumps for safer pillar extraction. 20th International Conference on Ground Control in Mining Morgantown, Virginia, USA, August 2001. pp. 59–66.
16. Maleki H., Owens J., Endicott M. Field evaluation of mobile roof support technologies. Proc. 20th International Conference on Ground Control in Mining. Morgantown, WV. West Virginia University, 2001. pp. 67–77.
17. Galvin J. M. Pillar Extraction. Ground Engineering – Principles and Practices for Underground Coal Mining. Springer, Cham. 2016. pp. 309–358.
18. Howe L. A Decade of Mobile Roof Support Application in the United States. Proceedings of 17th International Conference on Ground Control in Mining. Morgantown, WV, August 4–6, 1998. Dept. of Mining Engineering, WV Univ. pp. 187–201.
19. Instructional guidelines on selection of geomechanical parameters of shortwall coal mining technology. Saint-Petersburg: Inter-Branch Science Center VNIMI, 2003. 53 p.

Полный текст статьи Classification of protective pillars toward higher safety and innovation in room-and-pillar coal mining
Назад