Determining the parameters of stratification cavity in rock mass to extract mine methane
/ 0
- Details
- Category: Content №6 2022
- Last Updated on 25 December 2022
- Published on 30 November -0001
- Hits: 2558
Authors:
V.Falshtynskyi, orcid.org/0000-0002-3104-1089, Dnipro University of Technology, Dnipro, Ukraine
P.Saik*, orcid.org/0000-0001-7758-1083, Dnipro University of Technology, Dnipro, Ukraine; LLC Dniprometaloplast, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
V.Lozynskyi, orcid.org/0000-0002-9657-0635, Dnipro University of Technology, Dnipro, Ukraine
B.Toleuov, orcid.org/0000-0001-5259-4910, Saken Seifullin Kazakh Agrotechnical University, Astana, the Republic of Kazakhstan
V.Sulaiev, orcid.org/0000-0001-6312-5597, Dnipro University of Technology, Dnipro, Ukraine
V.Buketov, orcid.org/0000-0003-3243-3970, Universidad Nacional de San Agustin de Arequipa, Arequipa, the Republic of Peru
* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2022, (6): 030 - 035
https://doi.org/10.33271/nvngu/2022-6/030
Abstract:
Purpose. Substantiation of the stress-strain parameters of a rock mass state to identify potential mine methane accumulation in the roof rocks of the extraction pillar.
Methodology. Characterization of stratification cavity in rock mass for mine methane extraction relied upon analytical studies. The research is based on a method by Professor O.V. Savostyanov to calculate a stress-strain state of rocks. The method has been implemented in GeoDenamics Lite software. The use of the method helps obtain both geometrical and physical parameters of load characteristics for typical rock layers from the coal seam up to the surface. The abovementioned makes it possible to identify areas of rock stratification, coal bench being flaked away, and the number of rock layers after stratification. Mining and geological conditions of the coal seam occurrence and mining technology are the output data for the research.
Findings. Analysis of geometrical and physical parameters of load characteristics on the roof rocks of a coal seam has supported the fact that abnormal pressure areas propagate within the rock mass. The listed parameters vary from a seam up to the surface normally both towards the rock mass and towards the mined-out area along with the stope advance. The abovementioned helps define parameters of stratification cavity formation within the roof rocks of an extraction pillar since the cavities may accumulate mine methane.
Originality. Dependencies of the changes in rock layer subsidence height have been derived based upon formation dynamics of the mined-out longwall volume. Regularities of changes in volumes of rock formation stratification cavities have been identified depending upon the strength and thickness of the rock layers; closeness to mining area; and stope advance velocity as well as its length.
Practical value. Based upon the method by Professor O.V.Savostyanov, an algorithm has been proposed to define possible mine methane accumulations after mining operations within the extraction pillar are completed. Hence, the areas of methane accumulation will be considered in future as extra sources of fuel material. At the same time, it has been proposed to complement operation mode of a mining enterprise with biogas plants if the produced mine mixture is poor. A technological scheme for the combined mine methane-biogas extraction has been provided.
Keywords: stope, mine methane, coal seam, stress-strain state, stratification cavity
References.
1. Jesic, J., Okanovic, A., & Panic, A. A. (2021). Net zero 2050 as an EU priroty: modeling a system for efficient investments in eco innovation for climate change mitigation. Energy, Sustainability and Society, 11(1), 1-16. https://doi.org/10.1186/s13705-021-00326-0.
2. Gorova, A., Pavlychenko, A., & Borysovska, O. (2013). The study of ecological state of waste disposal areas of energy and mining companies. Annual Scientific-Technical Collection Mining of Mineral Deposits, 169-172. https://doi.org/10.1201/b16354-29.
3. Bexeitova, R., Veselova, L., Kassymkanova, K. K., Jangulova, G., Baidauletova, G., Zhalgasbekov, Y., Shugyla, B., & Turekhanova, V. (2018). The problem of environmental safety of the fields of mining industrial production of arid zone. Geodesy and Cartography, 44(4), 146-155. https://doi.org/10.3846/gac.2018.4314.
4. Bazaluk, O., Sai, K., Lozynskyi, V., Petlovanyi, M., & Saik, P. (2021). Research into Dissociation Zones of Gas Hydrate Deposits with a Heterogeneous Structure in the Black Sea. Energies, 14(5), 1345. https://doi.org/10.3390/en14051345.
5. Law, B.E., Ulmishek, G.F., Clayton, J.L., Kabyshev, B.P., Pashova, N.T., & Krivosheya, V.A. (2018). Basin-centered gas evaluated in Dnieper-Donets basin, Donbas foldbelt, Ukraine. Oil and Gas Journal, 96(47), 74-78.
6. Bondarenko, V.I., Kharin, Ye.N., Antoshchenko, N.I., & Gasyuk,R.L. (2013). Basic scientific positions of forecast of the dynamics of methane release when mining the gas bearing coal seams. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (5), 24-30.
7. Duda, A., & Krzemie, A. (2018). Forecast of methane emission from closed underground coal mines exploited by longwall mining a case study of Anna coal mine. Journal of Sustainable Mining, 17(4), 184-194. https://doi.org/10.1016/j.jsm.2018.06.004.
8. Nurpeissova, M., Rysbekov, K., Kenesbayeva, A., Bekbassarov,Zh., & Levin, E. (2021). Simulation of geodynamic processes. Engineering Journal of Satbayev University, 134(4), 16-24. https://doi.org/10.51301/vest.su.2021.i4.03.
9. Gamiy, Yu., Kostenko, V., Zavialova, O., Kostenko, T., & Zhurbynskyi, D. (2020). Identifying sources of coal spontaneous heating in mine workings using aerogas control automatic systems. Mining of Mineral Deposits, 14(1), 120-127. https://doi.org/10.33271/mining14.01.120.
10. Zavialova, O., Kostenko, V., Liashok, N., Grygorian, M., Kostenko, T., & Pokaliuk, V. (2021). Theoretical basis for the formation of damaging factors during the coal aerosol explosion. Mining of Mineral Deposits, 15(4), 130-138. https://doi.org/10.33271/mining15.04.130.
11. Wang, X., Zhou, F., Ling, Y., Xiao, Y., Ma, B., Ma, X., & Kang,J. (2021). Overview and outlook on utilization technologies of low-concentration coal mine methane. Energy & Fuels, 35(19), 15398-15423. https://doi.org/10.1021/acs.energyfuels.1c02312.
12. Zavialova, O., Kostenko, V., Liashok, N., Grygorian, M., Kostenko, T., & Pokaliuk, V. (2021). Theoretical basis for the formation of damaging factors during the coal aerosol explosion. Mining of Mineral Deposits, 15(4), 130-138. https://doi.org/10.33271/mining15.04.130.
13. Koroviaka, Y., Pinka, J., Tymchenko, S., Rastsvietaiev, V., Astakhov, V., & Dmytruk, O. (2020). Elaborating a scheme for mine methane capturing while developing coal gas seams. Mining of Mineral Deposits, 14(3), 21-27. https://doi.org/10.33271/mining14.03.021.
14. Dairbekova, G., Zhautikov, B., Zobnin, N., Bekmagambetov, D., & Tolubayeva, D. (2021). Use of si-composite aspiration dusts production in the creation of thin-film anodes. Metalurgija, 60(3-4), 419-422.
15. Zhaslan, R.K., Zhautikov, B.A., Romanov, V.I., Aikeyeva, A.A., & Yerzhanov, A.S. (2022). Improvement of methods for semi-finished carbon product tapping from the basic oxygen furnace. Metalurgija, 61(1), 203-205.
16. Savostianov, O.V. (2016). Methods for forecasting geomechanical processes for selecting technological parameters to develop shallow layers: monograph. Dnipro: NMU.
17. Shashenko, A., Gapieiev, S., & Solodyankin, A. (2009). Numerical simulation of the elastic-plastic state of rock mass around horizontal workings. Archives of Mining Sciences, 54(2), 341-348.
18. Rysbekov, K., Bitimbayev, M., Akhmetkanov, D., Yelemessov, K., Barmenshinova, M., Toktarov, A., & Baskanbayeva, D. (2022). Substantiation of mining systems for steeply dipping low-thickness ore bodies with controlled continuous stope extraction. Mining of Mineral Deposits, 16(2), 64-72. https://doi.org/10.33271/mining16.02.064.
19. Bondarenko, V., Symanovych, G., & Koval, O. (2012). The mechanism of over-coal thin-layered massif deformation of weak rocks in a longwall. Geomechanical Processes During Underground Mining, 41-44. https://doi.org/10.1201/b13157-8.
20. Falshtynskyi, V., Dychkovskyi, R., Kononenko, M., Yurchenko,K., & Edgar Cceres Cabana (2018). Usage of secondary and renewable resources in a mining energy-chemical complex (MECC). Collection of research papers of the NMU, (55), 130-142.
Newer news items:
- Impact of digital maturity on sustainable development effects in energy sector in the condition of Industry 4.0 - 25/12/2022 02:37
- Influence of misalignment of connection of electrical machine shafts on the nature of electric power of the induction motor - 25/12/2022 02:37
- Determination of the deformation parameters of the steel reinforcing phase inside the aluminum matrix during hot rolling - 25/12/2022 02:37
- Minimization of dynamic changes in the tension of long products behind the outlet cage in rolling stock production in coils - 25/12/2022 02:37
- Approximation of blades of radial machines with multiparameter family of smooth surfaces - 25/12/2022 02:37
- The influence of fissured material on tunnel stability (a numerical study) - 25/12/2022 02:37
- Taxonomy on the production processes and characterization of powder metallurgy used in additive manufacturing process - 25/12/2022 02:37
- Numerical study on deformation around underground mining structures (Algeria) - 25/12/2022 02:37
- Substantiation of research results on energy efficiency of basalt crushing - 25/12/2022 02:37
- Research on the rational profile of exit trails of auto transport in deep open mines - 25/12/2022 02:37
Older news items:
- Haul road condition impact on tire life of mining dump truck - 25/12/2022 02:37
- Mathematical modeling the quarry wall stability under conditions of heavily jointed rocks - 25/12/2022 02:37
- Energy efficient technologies for the mining industry - 25/12/2022 02:37
- Technology of an open pit refinement under limit stability of sides - 25/12/2022 02:37
