Application of digital twins to predict rock-bump hazard of drift pillars
N.E. Moroz1, D.V. Sidorov2, M.A. Sonnov3
1 VNIMI JSC, Saint Petersburg, Russian Federation
2 Polygor LLC, Saint Petersburg, Russian Federation
3 Fidesys LLC, Moscow, Russian Federation
Russian Mining Industry №3 / 2022 р. 93-98
Abstract: Drift pillars are used to protect haulage tunnels from the effects of formation pressure and ingress of the caved rock mass. At the same time, leaving pillars made up of fragile ores exposed to significant compressive stresses poses a risk of dynamic formation pressure. Due to the design features of the mining method and safety regulations, it is not possible to access the drift pillar from the rising side, which limits the ability to make a meaningful instrumental forecast of the rock-bump hazard. Therefore, it is advisable to use digital twins to predict the rock-bump hazard of the drift pillars. The article describes the experience gained by the VNIMI Institute in using the PRESS 3D URAL dedicated software (Polygore LLC, St. Petersburg) and the FIDESYS software package (Fidesys, Moscow) for a comprehensive assessment of the stress-and-strain state and rock-bump hazardous condition of the drift pillar. The first stage included numerical evaluation of the natural tectonic stress field using the PRESS 3D URAL software. At the second stage, an assessment of the man-made stress-and-strain state of the rock mass and the ore drift pillar was performed using the FIDESYS software package during underground mining with the heading-and-stall method. The final stage involved a prediction of the rock-bump hazard of the ore pillar using data on the ore strength properties.
Keywords: drift pillars, formation pressure, tectonic structure, numerical modelling, boundary integral equations method, finite element method, lateral reaction pressure coefficient, rock-bump hazard prediction
Acknowledgments: The research was financially supported by the Russian Foundation for Basic Research and the Ministry of Education, Culture, Science and Sports of Mongolia under Research Project No. 19-510-44013\21
For citation: Moroz N.E., Sidorov D.V., Sonnov M.A. Application of digital twins to predict rock-bump hazard of drift pillars. Russian Mining Industry. 2022;(3):93–98. https://doi.org/10.30686/1609-9192-2022-3-93-98
Article info
Received: 02.06.2022
Revised: 20.06.2022
Accepted: 21.06.2022
Information about the authors
Nikita E. Moroz – Research Scientist, ‘VNIMI’ JSC, Saint Petersburg, Russian Federation; e-mail: moroz.nikita.1998@ mail.ru
Dmitry V. Sidorov – Dr. Sci. (Eng.), Full-fledged member of the Russian Academy of Mining Sciences, Deputy Director General for Research, Polygor LLC, Saint Petersburg, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Maxim A. Sonnov – Full-fledged member of the Russian Academy of Mining Sciences, Deputy Director General for Sales, Fidesys LLC, Moscow, Russian Federation
References
1.Livinskiy I.S., Mitrofanov A.F., Makarov A.B. Complex geomechanical modeling: structure, geology, reasonable sufficiency. Gornyi Zhurnal. 2017;(8):51–55. (In Russ.) https://doi.org/10.17580/gzh.2017.08.09
2. Rasskazov I.Yu., Kursakin G.A., Potapchuk M.I., Miroshnikov V.I., Freidin A.M., Osadchy S.P. Geomechanical assessment of deep-level mining conditions in the yuzhnoe complex ore deposit. Journal of Mining Science. 2012;48(5):874–881.
3. Sosnovskaia E. L., Avdeev A. N. Forecasting potential rockburst hazard of Kholbinsky mine lower horizons. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal. 2019;(8):30–37 (In Russ.). https://doi.org/10.21440/0536-1028-2019-8-30-37
4. Eremenko A.A., Gakhova L.N., Eremenko V.A. Effect of mining sequence on stress-strain state of a rock mass en-closing a complex ore deposit. Mining Informational and Analytical Bulletin. 2015;(8):5–16. (In Russ.). Available at: https://giab-online.ru/files/Data/2015/08/5-16_8_2015.pdf?ysclid=l4n8zvis7365641289
5. Małkowski P., Niedbalski Z. A comprehensive geomechanical method for the as-sessment of rockburst hazards in underground mining. International Journal of Mining Science and Technology. 2020;30(3):345–355. https://doi.org/10.1016/j.ijmst.2020.04.009
6. Sidorov D.V., Ponomarenko T.V. Estimation methodology for geodynamic behavior of nature-and-technology systems in implementation of mineral mining projects. Gornyi Zhurnal. 2020;(1):49–52. (In Russ.). https://doi.org/10.17580/gzh.2020.01.09
7. Vershinin A.V., Levin V.A., Morozov E.M. Strength analysis: Fidesys as an engineering tool. Moscow: LENAND; 2015. 408 p. (In Russ.)
8. Sonnov M.A., Kotikov D.A., Kuranov A.D. Application of CAE Fidesys in the solution of geomechanical tasks. Russian Mining Industry. 2018;(5):90–92. (In Russ.). https://doi.org/10.30686/1609-9192-2018-5-141-90-92
9. Moroz N.E., Belova M.V., Rukavishnikov G. D. Predicting stress zones at various stages of goldfield development. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal. 2021;(8):72–81. (In Russ.). https://doi.org/10.21440/0536-1028-2021-8-72-81
10. Strukov K.I., Rylnikova M.V. Issues and Prospects for the Development of Uzhuralzoloto Group of Companies in Conditions of Global Challenges. Russian Mining Industry. 2021;(1):54–60. (In Russ.) https://doi.org/10.30686/1609-9192-2021-1-54-60
11. Zhou Q., Liu D., Lin X. Pre-evaluation of fault stability for underground mining based on geomechanical fault-slip analysis. Geomatics, Natural Hazards and Risk. 2022;13(1):400–413. https://doi.org/10.1080/19475705.2022.2032401
12. Bewick R.P., Kaiser P.K., Amann F., Strength of massive to moderately jointed hard rock masses. Journal of Rock Mechanics and Geotechnical Engineering. 2019;11(3):562–575. https://doi.org/10.1016/j.jrmge.2018.10.003
13. Xu Wei, Jianping Zuo, Yue Shi, Haiyan Liu, Yunqian Jiang, Chang Liu, Experimental verification of parameter m in Hoek–Brown failure criterion considering the effects of natural fractures. Journal of Rock Mechanics and Geotechnical Engineering. 2020;12(5):1036–1045. https://doi.org/10.1016/j.jrmge.2020.01.006
14. Ponomarenko, T.; Nevskaya, M.; Jonek-Kowalska, I. Mineral Resource Depletion Assessment: Alternatives, Problems, Results. Sustainability 2021, 13, 862. https://doi.org/10.3390/su13020862
