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INDUSTRY SAFETY AND LABOUR PROTECTION
ArticleName Gas content and gas-dynamic characteristics potash stratum VI in Belaruskali’s Mine 2
DOI 10.17580/em.2023.01.17
ArticleAuthor Andreiko S. S., Litvinovskaya N. A., Bobrov D. A.
ArticleAuthorData

Mining Institute, Ural Branch, Russian Academy of Sciences, Perm, Russia:

Andreiko S. S., Head of Laboratory, Doctor of Engineering Sciences
Litvinovskaya N. A., Researcher, Candidate of Engineering Sciences, nlitvinovskaya@mail.ru
Bobrov D. A., Junior Researcher

Abstract

The problem of gas-dynamic phenomena is still urgent and relevant for the Starobin deposit of potash salts. Different types of phenomena are encountered on all mining levels. Thus, potash stratum III, which is the main working layer, is recognized as hazardous in terms of gas-dynamic phenomena of various types, and potash stratum I is considered hazardous due to sudden failure of mine floor rocks accompanied by gas emission. The data on the gas-dynamic hazard of potash stratum IV are yet unavailable, since this stratum remains off-balance, no work is carried out on this layer, and no relevant studies have been conducted. The solution to the problem of gas-dynamic phenomena always begins with the study of the gas content and gas-dynamic characteristics. Only after that, one can make recommendations on mining operation safety, and can select the most effective and least expensive ways to predict and prevent gas-dynamic phenomena. This article presents the studies into the gas content and gas-dynamic characteristics of free gases in potash stratum IV. The studies were carried out during getting access to potash stratum IV via a ramp and during development driving. In addition to individual data, the summary studies of the gas content and initial rate of gas release as the most significant characteristics are also presented. An assumption is made about the most hazardous areas of underground openings, where the accumulation of free gas is likely to happen. The suitable methods for preventing gas-dynamic phenomena during development driving in the conditions of potash stratum IV are considered. As the preliminary recommendations, it is proposed to perform drilling of degassing holes in the floor of underground openings, at interfaces and in the places of expansions the best process-oriented and most effective method.

The studies were supported by the Russian Foundation for basic Research, Grant No. 20-45-596017 Geochemical and geodynamic evolution of gas phase at potash salt deposits as a basis for safe subsurface use.

keywords Starobin deposit of potash salts, potash stratum IV, sylvinite layers, rock salt layers, free gas, gas content, initial gas release rate, free gas pressure, near-contact gas accumulations, gas-dynamic phenomena, floor rock destruction, degassing holes
References

1. Makhnacha A. S. et al. Geology and petrography of potash salts of Belarus. Minsk : Nauka I tehnika, 1969. 367 p.
2. Gretskiy R. G., Vysotsky E. A., Kislik V. Z. et al. Potash salts of the Pripyat trough. Minsk : Nauka i tehnika, 1984. pp. 124–125.
3. Vysotsky E. A., Garetskiy R. G., Eroshina D. M. et al. Devonian salt-bearing formations of the Pripyat trough. Minsk : Nauka I tehnika, 1982. 208 p.
4. Vysotsky E. A., Gubin V. N., Kutyrlo V. E. Economic and geographic aspects of the potash industry in the world. Vestnik BGU. 2007. No. 1. pp. 90–96.
5. Vysotsky E. A., Gubin V. N., Smichkin A. D. et al. Potassium salt deposits in Belarus: Geology and rational use of mineral resources. Minsk : BGU, 2003. 264 p.
6. Smichkin A. D., Zubov V. P., Kalugin P. A. et al. Process flowsheets in Belaruskali mines : Current condition, problems and prospects. Gorniy Zhurnal. 2003. No. 7. pp. 45–50.
7. Proskuryakov N. M. Rock and gas outbursts in potash mines. Moscow : Nedra, 1980. 263 p.
8. Kovalev O. V., Livenskiy V. S., Bylino L. V. Safe potash mining. Minsk : Polymya, 1982. 96 p.
9. Proskuryakov N. M., Kovalev O. V., Mescheryakov V. V. Gas-dynamics control in potash ore. Moscow : Nedra, 1988. 239 p.
10. Proskuryakov N. M. Ground control. Moscow : Nedra, 1991. 368 p.
11. Andreiko S. S., Ivanov O. V., Litvinovskaya N. A. Prediction and prevention of gas dynamic events in preparatory drives in underminedsalt rock mass: Monograph. Perm: Publishing House of Perm, National Research Polytechnic University, 2015. 159 p.
12. Kai Wang, Feng Du. The classification and mechanisms of coal–gas compound dynamic disasters: A preliminary discussion. International Journal of Mining and Mineral Engineering. 2019. Vol. 10, No. 1. pp. 68–84.
13. Black D. J. Review of coal and gas outbursts in Australian underground coal mines. International Journal of Mining Science and Technology. 2019. Vol. 29, Iss. 6. pp. 815–824.
14. Liang Chen, Enyuan Wang, Jianchun Ou. et al. Coal and gas outburst hazards and factors of the No. B-1 Coalbed, Henan, China. Geosciences Journal. 2017. Vol. 22, No. 1. pp. 171–182.
15. Zhou Peiling, Yinghua Zhang, Zhi’an Huang, Yukun Gao, Wang Hui. et al. Coal and gas outburst prevention using new high water content cement slurry for injection into the coal seam. International Journal of Mining Science and Technology. 2017. Vol. 27(4) pp. 669–673.
16. Zakharov V. N., Malinnikova O. N. Outbursting risk in face areas of gasbearing coal seams under mining. Gornyi Zhurnal. 2018. No. 12. pp. 81–85.
17. Odintsev V. N., Makarov V. V. Dynamic fracture of gas-bearing coal seam during zonal disintegration. Journal of Mining Science. 2020. Vol. 56. No. 6. pp. 932–946.
18. Kubrin S. S. Multifunction system to predict hazardous gas-dynamic phenomena in coal mines. Gornyi Zhurnal. 2017. No. 11. pp. 97–100.
19. Shadrin A. V. Geophysical criterion of pre-outburst crack propagation in coal beds. Journal of Mining Science. 2016. Vol. 52, No. 4. pp. 670–682.
20. Тarakanov V. A., Golovaty I. I., Beresnev S. P., Andreiko S. S., Ivanov O. V. Gas content of potash stratum III at the Starobin deposit. Gornyi Zhurnal. 2010. No. 8. pp. 25–27.
21. Beresnev S. P., Senyuk V. V., Gonchar V. I., Andreiko S. S., Litvinovskaya N. A. Mechanism of gas-dynamic phenomena-hazardous zones in potash stratum I. Gornyi Zhurnal. 2010. No. 8. pp. 31–33.
22. Podlesny I. A., Beresnev S. P., Andreiko S. S., Nekrasov S. V., Litvinoskaya N. A. Geomechanical modeling of sudden failure of floor rocks in underground openings. Gornyi Zhurnal. 2010. No. 8. pp. 28–30.
23. Barbikov D. V., Andreiko S. S., Ivanov O. V. et al. Dynamics of rock mass at the Krasnoslobodsk fault. Gornyi Zhurnal. 2018. No. 8. pp. 38–42.
24. Andreiko S. S. Prevention of gas-dynamic phenomena in cutting ramps to access potash horizon IV at the Starobin deposit of potash salts. Strategy and Processes of Georesources Development. Perm : GI UrO RAN, 2014. No. 12. pp. 227–229.
25. Zemskov A. N., Kondrashev P. I., Travnikova L. G. Natural gas at potash deposits and measures to combat them. Perm : Tipographiya kuptsa Tarasova, 2008. 414 p.
26. Litvinovskaya N. A. Studies of gas content and gas-dynamic characteristics of potash stratum IV in the area of ramps in Belaruskali’s Mine 2 field. Gornoe ekho. 2019. No. 2(75). pp. 79–82.

Full content Gas content and gas-dynamic characteristics potash stratum VI in Belaruskali’s Mine 2
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