Substantiation into “rock massive – underground gasifier” system adaptability of Solenovskyi site in the Donetsk coal basin

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Authors:

V.S.Falshtynskyi, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-3104-1089,National Mining University, Dnipro, Ukrainе, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

R.O.Dychkovskyi, Dr. Sc. (Tech.), Prof., orcid.org/0000-0002-3143-8940, National Mining University, Dnipro, Ukrainе, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

P.B.Saik, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0001-7758-1083, National Mining University, Dnipro, Ukrainе, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

V.H.Lozynskyi, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-9657-0635, National Mining University, Dnipro, Ukrainе, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

E.C.Cabana, Cand. Sc. (Tech.), Assoc. Prof., Scientific Research Institute of the Center of Renewable Energy and Energy Efficiency at St. Augustine University, Head, Peru, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract:

Purpose. Research on stress-deformed state of rock massive around underground gasifier taking into account the change in the continuity of the roof rocks and the thermodynamic stresses in them.

Methodology. Conducting analytical studies was based on the accepted physical and mathematical models, for the development of which the rock massif movement theory of Professor A. V. Savostianov is adopted, reflecting the features of the rock strata behavior over the gasifier (stratification, the fractures and stratification cavities formation, layers movements relative to each other).

Findings. Multivariant calculations of the stress-deformed state of the rocks around the underground gasifier are performed with the establishment of the load diagrams parameters for the sub-layers of the massif, depending on geological, technological and temporal factors.

Originality. Dependencies of the underground gasifier bearing pressure zones distribution on the adjacent roof level of the coal seam were established, taking into account gasification channel length (30 and 60 m) and the velocity of combustion face advance from 0.5 to 2.0 m/day. For the first time, dependencies representing the rock layers subsidence parameters in the underground gasifier roof from geomechanical factors, as well as thermal stresses along the gasification channel length and the velocity of combustion face advance, were obtained.

Practical value. A mathematical mechanism was proposed for the determination of stresses in various rock massif sections in case of borehole underground coal gasification in order to establish the conditions for the “Rock massive – underground gasifier” system adaptability, taking into account geomechanical factors and thermal stresses along the gasification channel length. The obtained dependencies make it possible to predict the necessary velocity of the combustion face advance to ensure technological effectiveness of the gasification process.

References.

1. Falshtyns’kyy, V., Dychkovs’kyy, R., Lozyns’kyy, V. and Saik, P., 2013. Justification of the gasification channel length in underground gas generator. Annual Scientific-Technical Collection – Mining of Mineral Deposits, pp. 125–132. DOI:10.1201/b16354-23.

2. Vladyko, O., Kononenko, M. and Khomenko, O., 2012. Imitating modeling stability of mine workings. Geomechanical Processes During Underground Mining, pp. 147–150. DOI:10.1201/b13157-26.

3. Sotskov, V. and Saleev, I., 2013. Investigation of the rock massif stress strain state in conditions of the drainage drift overworking. Mining of Mineral Deposits, pp. 197–201. DOI:10.1201/b16354-36.

4. Bondarenko, V., Maksymova, E. and Koval, O., 2013. Genetic classification of gas hydrates deposits types by geologic-structural criteria. Annual Scientific-Technical Collection – Mining of Mineral Deposits, pp. 115–119. DOI:10.1201/b16354-21.

5. Dychkovskyi, R. O., Lozynskyi, V. H., Saik, P. B., Petlovanyi, M. V., Malanchuk, Ye. Z. and Malanchuk, Z. R., 2018. Modeling of the disjunctive geological fault influence on the exploitation wells stability during underground coal gasification. Archives of Civil and Mechanical Engineering, 18(3), pp. 1136–1148. DOI: 10.1016/j.acme.2018.01.012.

6. Ovchynnikov, M., Ganushevych, K. and Sai, K., 2013. Methodology of gas hydrates formation from gaseous mixtures of various compositions. Annual Scientific-Technical Collection – Mining of Mineral Deposits, pp. 203–205. DOI: 10.1201/b16354-37.

7. Bondarenko, V., Svietkina, O. and Sai, K., 2017. Study of the formation mechanism of gas hydrates of methane in the presence of surface-active substances. Eastern-European Journal of Enterprise Technologies, 5(6(89)), pp. 48–55. DOI: 10.15587/1729-4061.2017.112313.

8. Khomenko, O., Kononenko, M. and Myronova, I., 2013. Blasting works technology to decrease an emission of harmful matters into the mine atmosphere. Mining of Mineral Deposits, pp. 231–235. DOI:10.1201/b16354-43.

9. Gorova, A., Pavlychenko, A., Kulyna, S. and Shkre­met­ko, O., 2012. Ecological problems of post-industrial mining areas. Geomechanical Processes During Underground Mining, pp. 35–40. DOI: 10.1201/b13157-7.

10. Falshtynskyi, V., Dychkovskyi, V. Lozynskyi, V. and Saik, P., 2012. New method for justification of the technological parameters of coal gasification in the test setting. Geomechanical Processes During Underground Mining – Proceedings of the School of Underground Mining, pp. 201–208. DOI: 10.1201/b13157-710.1201/ b13157-35.

11. Otto, C. and Kempka, T., 2015. Thermo-mechanical simulations of rock behavior in underground coal gasification show negligible impact of temperature-dependent parameters on permeability changes. Energies, 8(6), pp. 5800–5827. DOI:10.3390/en8065800.

12. Dubiński, J. and Turek, M., 2016. Mining problems of underground coal gasification – Reflections based on experience gained in experiment conducted in KHW S.A. Wieczorek coal mine. Mining Science, 23, pp. 7–20. DOI:10.1201/b13157-710.5277/msc162301.

13. Janoszek, T., Stańczyk, K. and Smoliński, A., 2017. Modelling Test of Autothermal Gasification Process Using CFD. Archives of Mining Sciences, 62(2), pp. 253‒268. DOI:10.1201/b13157-710.1515/amsc-2017-0019.

14. Cherniaiev, O. V., 2017. Systematization of the hard rock non-metallic mineral deposits for improvement of their mining technologies. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 5, pp. 11–17.

15. Petlovanyi, M., Sai, K. and Malanchyk, Ye., 2018. Analytical Research of the Stress-Deformed State in the Rock Massif around Faulting. International Journal of Engineering Research in Africa, 35, pp. 46–57.

16. Dryzhenko, A., Moldabayev, S., Shustov, A., Adam­chuk, A. and Sarybayev, N., 2017. Open pit mining technology of steeply dipping mineral occurrences by steeply inclined sublayers. International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM, 17(13), pp. 599–606.

17. Kononenko, M., Khomenko, O., Sudakov, А., Dro­bot, S. and Lkhagva, Ts., 2016. Numerical modelling of massif zonal structuring around underground working. Mining of Mineral Deposits, 10(3), pp. 101–106. DOI: 10.15407/mining10.03.101.

18. Tabachenko, M., 2016. Substantiating parameters of stratification cavities formation in the roof rocks during underground coal gasification. Mining of Mineral Deposits, 10(1), pp. 16–24. DOI:10.1201/b13157-710.15407/mining10.01.016.

19. Golinko, V. I., Yavorskiy, A. V., Lebedev, Ya. Ya. and Yavorskaya, Ye. A., 2014. Estimation of frictional sparking effect on firedamp inflammation during fragmentation of gas-saturated rock massif. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 6, pp. 31–37.

20. Sakhno, I., Isayenkov, O. and Rodzin, S., 2017. Local reinforcing of footing supported in the destroyed rock massif. Mining of Mineral Deposits, 11(1), pp. 9–16. DOI: 10.1201/b13157-710.15407/mining11.01.009.

21. Filatiev, M., 2017. Effect of rocks displacement activation on the formation of the surface trough during anthracite seams extraction. Mining of Mineral Deposits, 11(2), pp. 91–95. DOI: 10.1201/b13157-710.15407/ mining11.02.091.

22. Kuz’menko, O., Petlyovanyy, M. and Stupnik, M., 2013. The influence of fine particles of binding materials on the strength properties of hardening backfill. Annual Scientific-Technical Collection – Mining of Mineral Deposits, pp. 45–48. DOI: 10.1201/b13157-710.1201/ b16354-10.

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