Implementation of comprehensive geomechanical analysis procedure in mining a coal seam

The aim of the study is to develop a procedure for the experimental and analytical research of geomechanical processes in mining a coal seam in varying geological conditions. The article describes a stress–strain analysis algorithm based on the finite element method for a coal seam and enclosing rock mass with regard to the impact of voids, and folding and disjunctions. The algorithm includes the computer programs designed at the Siberian State Industrial University for the stress–strain analysis in a nonlinear problem of a nonuniform continuum, and enables numerical solving of systems of differential equations including equations of equilibrium and elasticity, compatibility conditions. The accessory program modules allow taking into account nonlinearity of deformation processes. Equipment of a seismic monitoring system for a mine field is described. The seismic information processing uses an indicator, including a relative value of a seismic energy of an event and an integral seismic intensity, which comprehensively characterizes geodynamic behavior of rock mass. The mathematical stress–strain modeling results are compared with the seismic activity parameters recorded in the Osinniki Mine during mining operations in extraction panel 4-1-5-7 enclosing folding and disjunctions.

Razumov E. E., Prostov S. M., Petrova O. A. Implementation of comprehensive geomechanical analysis procedure in mining a coal seam. MIAB. Mining Inf. Anal. Bull. 2024;(9):142-159. [In Russ]. DOI: 10.25018/0236_1493_2024_9_0_142.

E.E. Razumov¹, Graduate Student; Senior Researcher, JSC Scientific Research Institute of Mining Geomechanics and Surveying — VNIMI Interdisciplinary Research Center, Saint-Petersburg, Russia, e-mail: razumov@vnimi.ru,
S.M. Prostov¹, Dr. Sci. (Eng.), Professor, e-mail: psm.kem@mail.ru,
O.A. Petrova, Cand. Sci. (Eng.), Assistant Professor, Siberian State Industrial University, 654007, Novokuznetsk, Russia, e-mail: ol_petrova@mail.ru,
¹ T. Gorbachev Kuzbass State Technical University, 650000, Kemerovo, Russia.

E.E. Razumov, e-mail: razumov@vnimi.ru.

1. Galvin J. M. Ground engineering. Principles and practices for underground coal mining. Australia, Springer, 2016, 693 p. DOI: 10.1007/978-3-319-25005-2.

2. Meshkov A. A., Volkov M. A., Ordin A. A., Timoshenko A. M., Botvenko D. V. On the record length and productivity of the treatment face of the V. D. Yalevsky mine. Ugol'. 2018, no. 7, pp. 4—7. [In Russ]. DOI: 10.18796/0041-5790-2018-7-4-7.

3. Remizov A. V., Ustyugova E. A. On technical and economic indicators of coal mining enterprises on the example of mines of Zapsibugol Company LLC. Bulletin of the Siberian State Industrial University. 2018, no. 2 (24), pp. 14—17. [In Russ].

4. Il'inets A. A. Obosnovanie parametrov upravleniya sostoyaniem massiva vokrug vyrabotok pri podgotovke vyemochnykh uchastkov pologikh ugol'nykh plastov tremya shtrekami [Substantiation of parameters for controlling the state of the massif around the workings during the preparation of excavation sites of shallow coal seams with three drifts], Candidate’s thesis, Saint-Petersburg, SPbGU, 2021, 139 p.

5. Anufriev V. E., Presler V. T., Cherdantsev N. V. Prospects for the development of an instrument base for geomechanical monitoring of an array in the vicinity of workings during underground coal mining. Vestnik of safety in coal mining scientific center. 2011, no. 2, pp. 53—60. [In Russ].

6. Lubosic Z., Waclawik P., Horak P., Wrana A. The influence of in-situ rock mass stress conditions on deformation and load of gateroad supports in hard coal mine. Procedia Engineering. 2017, vol. 191, pp. 975—983. DOI: 10.1016/j.proeng.2017.05.269.

7. Lynch R. A continuing roof and floor monitoring systems for tailgate roadways. Proceedings of the 18th Coal Operators’ Conference, Mining Engineering, University of Wollongong, 2018, pp. 31— 38.

8. Jiaxin D., Min T., Xiangyang Z., Qingwei B. Analysis of the influence characteristics of the support stability of a fully mechanized coal mining face under the hard roof mining pressure. Shock and Vibration. 2021, pp. 1—15. DOI: 10.1155/2021/1307000.

9. Kostrykin A. P., Shaidulin K. V., Ushakov E. N., Merzlyakov P. E. Review of applied methods for monitoring the effectiveness of anchorage. Vestnik of safety in coal mining scientific center. 2010, no. 2, pp. 207—211. [In Russ].

10. Daigle L., Mills K. Experience of monitoring shear movements in the overburden strata around longwall panels. Proceedings of the 17th Coal Operators’ Conference, Mining Engineering, University of Wollongong, 2017, pp. 125—137.

11. Buddery P., Morton C., Scott D., Owen N. A continuing roof and floor monitoring systems for tailgate roadways. Proceedings of the 18th Coal Operators’ Conference, Mining Engineering, University of Wollongong, 2018, pp. 72—81.

12. Razumov E. E., Rukavishnikov G. D., Mulev S. N., Prostov S. M. Basic principles of building seismic monitoring systems during mining of impact–prone coal seams. Gornyi Zhurnal. 2021, no. 1, pp. 8—12. [In Russ]. DOI: 10.17580/gzh.2021.01.02.

13. Zholmagambetov N., Khalikova E., Demin V., Balabas A., Abdrashev R., Suiintayeva S. Ensuring a safe geomechanical state of the rock mass surrounding the mine workings in the Karaganda coal basin, Kazakhstan. Mining and Mineral Deposits. 2023, vol. 17, pp. 74—83. DOI: 10.33271/ mining17.01.074.

14. Xiaoping X., Hongyang L., Xinqiu F., Junwei Y., Jiangang L., Minfu L., Gang W. Deformation mechanism and control technology of surrounding rock of three-soft coal roadways under high horizontal stress. Energies. 2023, vol. 16, no. 2, article 728. DOI: 10.3390/en16020728.

15. Zhang J., Gao S., He Y., Yang T., Li T., Yan Y., Sun J. Study on the upper limit of roof failure in soft rock roadway. Shock and Vibration. 2023, vol. 2, pp. 1—20. DOI: 10.1155/2023/3837106.

16. Liu X., Sun J., Yang Y. Stress distribution and failure characteristics of stope overburden of an inclined coal seam. Geofluids. 2021, vol. 3, pp. 1—13. DOI: 10.1155/2021/5552016.

17. Gogolin V. A. Deformation and strength characteristics of brittle rocks under compression. Bulletin of the Kuzbass State Technical University. 2016, no. 3, pp. 3—7. [In Russ].

18. Gogolin V. A., Ermakova I. A. Choosing the location of the preparatory work relative to the developed space, taking into account geomechanical factors. Bulletin of the Kuzbass State Technical University. 2019, no. 1, pp. 43—48. [In Russ]. DOI: 10.26730/1999-4125-2019-1-43-48.

19. Tsvetkov A. B., Pavlova L. D., Fryanov V. N. Nonlinear mathematical model of the geomechanical state of a carboniferous massif. MIAB. Mining Inf. Anal. Bull. 2015, no. 5, pp. 365—370. [In Russ].

20. Cherepov A. A., Pavlova L. D. Conformity assessment of the results of numerical modeling and mine studies of the parameters of the stress-strain state of the rock mass. Bulletin of the Kuzbass State Technical University. 2017, no. 6, pp. 61—68. [In Russ].

21. Reuter M., Krakh M., Kisling U., Wexler Yu. On the geomechanical state of the treatment face during the mining of coal seams at the Polysaevskaya mine in Kuzbass. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2017, no. 2, pp. 47—52. [In Russ].

22. Seryakov V. M., Rib S. V., Fryanov V. N. The stress-strain state of a coal mine during the transition by a cleaning mechanized complex of a zone of geological disturbance. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2017, no. 6, pp. 32—40. [In Russ].

23. Seryakov V. M., Rib S. V., Basov V. V., Fryanov V. N. Geomechanical substantiation of the parameters of the technology of mining coal seams in the zone of mutual influence of the treatment space and advanced production. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2018, no. 6, pp. 21—29. [In Russ].

24. Vartanov A. Z., Petrov I. V., Fedash A. V. Scientific and methodological foundations for making design decisions on combined mining of formations with long and short faces at coal mining enterprises. Ugol'. 2015, no. 10, pp. 30—34. [In Russ].

25. Nikitina A. M., Fryanov V. N. Geomekhanicheskoe obespechenie ustoychivosti gornykh vyrabotok v neodnorodnom ugleporodnom massive [Geomechanical ensuring the stability of mine workings in an inhomogeneous carboniferous massif], Novokuznetsk, SibGIU, 2009, 199 p.

26. Zlatitskaya Yu. A., Fryanov V. N. Geomekhanicheskoe obosnovanie parametrov opasnykh zon i tekhnologii uprochneniya porod v okrestnosti podzemnykh gornykh vyrabotok [Geomechanical substantiation of the parameters of hazardous zones and technology of rock hardening in the vicinity of underground mine workings], Novokuznetsk, SibGIU, 2006, 160 p.

27. Petrova O. A., Vasiliev P. V., Fryanova O. V., Fryanov V. N. The model of stress formation, deformations and damages in a carboniferous massif during the integration of gravitational and geotectonic stress fields. Materiali za VIII mezhdunarodna nauchna praktichna konferentsiya «Novinata za naprednali nauka — 2012». T. 26. Tekhnologii [Material for the VIII international scientific practical conference «Novinata for science 2012», vol. 26. Technologies], Sofiya, «ByalGrad-BG» OOD, 2012, pp. 10—19.

28. Fryanov V. N., Stepanov Yu. A. Svidetel'stvo ob ofitsial'noy registratsii programmy na EVM № 2000610937 [Certificate of official registration of the computer program No. 2000610937], 21.09.2000. Moscow, Rospatent, 2000. [In Russ].

29. Stepanov A. V., Fryanov V. N., Stepanov Yu. A. Svidetel'stvo ob ofitsial'noy registratsii programmy na EVM № 2001610645 [Certificate of official registration of the computer program No. 2001610645]. 31.05.2001. Moscow, Rospatent, 2001. [In Russ].

30. Razumov E. E., Prostov S. M., Mulev S. N., Rukavishnikov G. D. Seismic information processing algorithms. MIAB. Mining Inf. Anal. Bull. 2022, no. 2, pp. 17—29. [In Russ]. DOI: 10.25018/02 36_1493_2022_2_0_17.