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ArticleName Geomechanical aspects of development of closely spaced ore deposits under conditions of rockburst hazard
DOI 10.17580/gzh.2020.09.03
ArticleAuthor Semenova I. E.

Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, Russia:

I. E. Semenova, Leading Researcher, Candidate of Engineering Sciences,


This article presents a scientific approach to the solution of geomechanical problems arising in mining of closely spaced ore deposits under high tectonic stresses. The approach has been developed at the Mining Institute of the Kola Science Center, RAS. The article gives a case-study of the Khibiny massif subjected to simultaneous mining of seven apatite–nepheline deposits under conditions of rockburst hazard. The author proposes geomechanical justification for the joint opencast and underground mining operations based on the 3D modeling of the stress–strain behavior of rock mass, including generation of a package of different-scale finite element models, starting from the scale of an ore field and down to certain geotechnical elements. The justification procedure includes:
- geomechanical transformation assessment in rock mass under large-scale parallel excavation of reserves from closely spaced deposits and determination of mutual influence zone of the opencast and underground mining fronts;
- development of a procedure and algorithms for the formation of a package of geomechanical numerical models to assess geological and geotechnical effects on the stress–strain behavior of rock mass on different scales;
- studies of deformation and failure of undermined rocks under prevailing horizontal compression;
- development of the geomechanical supervision principles for mining operations in closely spaced ore deposits under conditions of rockburst hazard.
The study was carried within an R&D project, including Topic No. 0226-2019-0058, and was supported by Apatit’s Kirovsk Division and by the North-Western Phosphorus Company. The results were included in the updated guidance documents and regulations for mining operations in ore bodies, on horizons and at interfaces in the Khibiny apatite arc.

keywords Stress–strain behavior, underground and opencast mining, numerical modeling, closely spaced deposits, geodynamic risks, control, geomechanical processes, monitoring

1. Trubetskoy K. N., Myaskov A. V., Galchenko Yu. P., Eremenko V. A. Creation and justification of convergent technologies for underground mining of thick solid mineral deposits. Gornyi Zhurnal. 2019. No. 5. pp. 6–13. DOI: 10.17580/gzh.2019.05.01
2. Kozyrev A. A., Panin V. I., Semenova I. E., Rybin V. V. Geomechanical support of mining operations in mines of the Murmansk Region. Gornyi Zhurnal. 2019. No. 6. pp. 45–50. DOI: 10.17580/gzh.2019.06.05
3. Laubscher D. H. A geomechanics classification system for the rating of rock mass in mine design. Journal of the Southern African Institute of Mining and Metallurgy. 1990. Vol. 9, No. 10. pp. 257–273.
4. Makarov A. B., Livinsky I. S., Rasskazov I. Yu., Saksin B. G., Potapchuk M. I. Geomechanical evaluation of roof-and-pillar parameters in transition to underground mining. Journal of Mining Science. 2016. Vol. 52, Iss. 3. pp. 438–447.
5. Human L., Jupp B. Geotechnical data collection and presentation – it starts and ends with a vision. AusiMM Bulletin. 2016. August.
6. Bye A. The strategic and tactical value of a 3D geotechnical model for mining optimization, Anglo Platinum, Sandsloot open pit. The Journal of The South African Institute of Mining and Metallurgy. 2006. Vol. 106, Iss. 2. pp. 97–104.
7. Li C. C. Dynamic rock support in burst-prone rock masses. Geomechanics and Geodynamics of Rock Masses : Proceedings of the 2018 European Rock Mechanics Symposium. London : Taylor & Francis Group, 2018. Vol. 1. pp. 47–62.
8. Livinskiy I. S., Mitrofanov A. F., Makarov A. B. Complex geomechanical modeling: structure, geology, reasonable sufficiency. Gornyi Zhurnal. 2017. No. 8. pp. 51–55. DOI: 10.17580/gzh.2017.08.09
9. Marjanović M., Pejić M., Krušić J., Abolmasov B. Jointed rock mass characterization using field and point-cloud data. Geomechanics and Geodynamics of Rock Masses : Proceedings of the 2018 European Rock Mechanics Symposium. London : Taylor & Francis Group, 2018. Vol. 1. pp. 319–324.
10. Lisjak A., Mahabadi O. K., He L., Tatone B. S. A., Kaifosh P. et al. Acceleration of a 2D/3D finite-discrete element code for geomechanical simulations using General Purpose GPU computing. Computers and Geotechnics. 2018. Vol. 100. pp. 84–96.
11. De Simone M., Pereira F. L. G., Roehl D. M. Analytical methodology for wellbore integrity assessment considering casing-cement-formation interaction. International Journal of Rock Mechanics and Mining Sciences. 2017. Vol. 94. pp. 112–122.
12. Kozyrev A. A., Savchenko S. N. The Eurasia lithospheric plate horizontal tectonic stresses modelling. Geoecology and Computers. Abingdon : Taylor & Francis, 2000. pp. 431–435.
13. Kozyrev A. A., Enyutin A. N., Maltsev V. A., Semenova I. E. Procedure for regional prediction of rockburst hazard and rock mass behavior and engineering decision-making on safe and efficient mining. Innovation potential of Kola science : Collected papers. Apatity : KNTs RAN, 2005. pp. 52–56.
14. Timoshenko S., Goodier J. N. Theory of elasticity. New York : McGraw-Hill Book Company, Inc., 1951. 519 p.
15. Rybin V. V. Geomechanical justification of mining in interface zones of open pit and underground mines under rock burst hazard (A case-study of Khibiny mines) : thesis of inauguration of Dissertation … of Candidate of Engineering Sciences. Apatity, 2000. 26 p.
16. Kozyrev A. A., Panin V. I., Semenova I. E., Zhuravleva O. G. Geodynamic safety of mining operations under rockburst-hazardous conditions in the Khibiny apatite deposits. Journal of Mining Science. 2018. Vol. 54, Iss. 5. pp. 734–743.
17. Kozyrev A. A., Zhuravleva O. G. Integrated approach to seismic hazard prediction during mining. Modern Methods of Seismic Hazard Assessment and Earthquake Prediction : Proceedings of the All-Russian Conference with International Participation. Moscow : IEPT RAS, 2019. p. 55.
18. Guides on overlying rock failure control and protection of structures and natural objects from harmful effect of underground mining at Apatit JSC. Apatity, 2002. 51 p.
19. Avetisyan I. M., Semenova I. E., Dmitriev S. V., Shestov A. A. Analysis of the principal tangential stresses and shear areas in the volumetric model of an elastically deformed rock mass. GIAB. 2017. Special issue 23. Information technologies in implementation of ecological strategy in the mining industry development. pp. 258–264.

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