Rock mass stress state at the Gremyachinskoe potassium deposit

The article presents the full-scale investigation data on the stress state of salt and anhydrite–dolomite rocks as a case-study of the Gremyachinskoe potassium salt deposit. Stress measurement is carried out in single mine openings and in structural mine elements using the methods based on the Kaiser effect. The research findings are used to estimate the lateral earth pressure coefficient in salt rocks of the test deposit. It is found that for the test rock mass, the typical stress state resembles the hydrostatic stress state. The orientations of the principal stresses are defined. In anhydrite–dolomite rocks, the maximal stress is the horizontal north– south stress, the minimal stress is the horizontal east–west stress, and the vertical stress has an intermediate value. The measured stresses in safety pillars of the room-and-pillar mining system are presented. The measurements were taken in two pillars 7.0 and 8.9 m high. The stress state analysis of adjacent rock mass shows that it has a poor quality and is damaged in all test sites, which is pointed at by the decreased values of the measured stresses. The reported results are meant for the justification of safe and efficient mining activities for a deep potash mine.

Keywords: stress state, borehole jack, Kaiser effect, salt rocks, salt rock mass, anhydrite–dolomite rock mass, potassium deposit, lateral earth pressure coefficient, deep mine.
For citation:

Toksarov V. N., Polyakov I. V., Beltyukov N. L., Lifshic E. L., Morozov I. A. Rock mass stress state at the Gremyachinskoe potassium deposit. MIAB. Mining Inf. Anal. Bull. 2025;(1):100-113. [In Russ]. DOI: 10.25018/0236_1493_2025_1_0_100.

Acknowledgements:

The study was supported by the Ministry of Science and Higher Education of the Russian Federation in the framework of the state contract, State Registration No. 124020500031-4.

Issue number: 1
Year: 2025
Page number: 100-113
ISBN: 0236-1493
UDK: 622.83
DOI: 10.25018/0236_1493_2025_1_0_100
Article receipt date: 11.07.2024
Date of review receipt: 31.08.2024
Date of the editorial board′s decision on the article′s publishing: 10.12.2024
About authors:

V.N. Toksarov1, Cand. Sci. (Eng.), Senior Researcher, e-mail: toksarov@mi-perm.ru, ORCID ID: 0000-0003-0006-105X,
I.V. Polyakov, Cand. Sci. (Eng.),
N.L. Beltyukov1, Cand. Sci. (Eng.), Senior Researcher, e-mail: bnl@mi-perm.ru, ORCID ID: 0000-0002-0716-998X,
E.L. Lifshic, Chief Surveyor, EuroChem-VolgaKaliy LLC, 404354, Kotelnikovo, Russia,e-mail: Lifshic@eurochem.ru,
I.A. Morozov1, Cand. Sci. (Eng.), Researcher, e-mail: imorozov.work@yandex.ru, ORCID ID: 0000-0002-6513-1293,
1 Mining Institute of the Ural Branch of the Russian Academy of Sciences, 614007, Perm, Russia.

 

For contacts:

I.A. Morozov, e-mail: imorozov.work@yandex.ru.

Bibliography:

1. Wagner H. Deep mining: A rock engineering challenge. Rock Mechanics and Rock Engineering. 2019, vol. 52, no. 5, pp. 1417—1446. DOI: 10.1007/s00603-019-01799-4.

2. Pathegama G. Ranjith, Jian Zhao, Minghe Ju, Radhika V. S. De Silva, Tharaka D. Rathnaweera, Adheesha K. M. S. Bandara. Opportunities and challenges in deep mining: A brief review. Engineering. 2017, vol. 3, no. 4, pp. 546—551. DOI: 10.1016/J.ENG.2017.04.024.

3. Kazlouski J., Zhuravkov M. A., Bogdan S. I. Study of sylvinite heterogeneous creep characteristics and their influence on shaft stability. The Mechanical Behavior of Salt X. CRC Press. 2022, pp. 519—529. DOI: 10.1201/9781003295808-48.

4. Blanco-Martín L., Rouabhi A., Hadj-Hassen F., Jaworowicz J., Azabou M., Hévin G., Labaune P. Creep of rock salt under a large range of deviatoric stresses. Rock Mechanics and Rock Engineering. 2024. URL: https://link.springer.com/article/10.1007/s00603-024-03841-6#citeas (дата обращения: 24.05.2024). DOI: 10.1007/s00603-024-03841-6.

5. Baryakh A. A., Fedoseev A. K., Lobanov S. Yu. Deformations and fracture of rock strata during deep level potash mining. Procedia Structural Integrity. 2021, vol. 32. pp. 109—116. DOI: 10.1016/j. prostr.2021.09.016.

6. Asanov V. A., Evseev A. V., Pankov I. L., Toksarov V. N. Investigation of the deformation processes of rocks and elements of the chamber development system. Gornyi Zhurnal. 2018, no. 6, pp. 13—16. [In Russ]. DOI: 10.17580/gzh.2018.06.02.

7. Swift G. M., Reddish D. J. Underground excavations in rock salt. Geotechnical and Geological Engineering. 2005, vol. 23, no. 1, pp. 17—42. DOI: 10.1007/s10706-003-3159-3.

8. Prapasiri Junthong, Supattra Khamrat, Suratwadee Sartkaew, Kittitep Fuenkajorn Determination of time-dependent strengths of salt pillars based on strain energy principle. International Journal of Mining Science and Technology. 2019, vol. 29, no. 2, pp. 273—279. DOI: 10.1016/j.ijmst.2018.04.011.

9. Rybak J., Khayrutdinov M. M., Kuziev D. A., Kongar-Syuryun Ch. B., Babyr N. V. Forecasting of the geomechanical state of the massif during the development of salt deposits with laying. Journal of Mining Institute. 2022, vol. 253, pp. 61—70. [In Russ]. DOI: 10.31897/PMI.2022.2.

10. Marian D.-P., Onica I. Finite element modelling of the stability of underground mining excavations at old mines — slanic salt mine. Mining Revue. 2021, vol. 27, no. 1, pp. 12—23. DOI: 10.2478/ minrv-2021-0002.

11. Wang S., Wang H., Zhu H., Wu Z., Li Z. Long-term stability analysis of pillars in salt cavern storage based on the salt rock dilatancy boundary evaluation method. Geotechnical and Geological Engineering. 2023, vol. 41, no. 6, pp. 3349—3358. DOI: 10.1007/s10706-023-02459-9.

12. Phillipson S. E. Texture, mineralogy, and rock strength in horizontal stress-related coal mine roof falls. International Journal of Coal Geology. 2008, no. 3, no. 75, pp. 175—184. DOI: 10.1016/j. coal.2008.05.018.

13. Andreiko S. S., Nesterova S. Yu. The nature of sudden destruction of the near-contour part of the massif during the driving of development workings in the mine of the Gremyachinsky mining and processing plant. Perm Journal of Petroleum and Mining Engineering. 2022, vol. 22, no. 3, pp. 144—150. [In Russ]. DOI: 10.15593/2712-8008/2022.3.6.

14. Lyadov V. O., Papulov A. S. Results of studies on the full gas content in rocks of the productive formation of the Gremyachinskoye potash salt deposit. Problems of Subsoil Use. 2023, no. 2 (37), pp. 99—111. [In Russ]. DOI: 10.25635/2313-1586.2023.02.099.

15. Rylnikova M. V., Sakharov E. M., Neugomonov S. S. Selection of the type and substantiation of the design of a strong anchor for mine workings in the development of deep deposits of potassium salt. News of the Tula state university. Sciences of Earth. 2023, no. 3, pp. 279—292. [In Russ].

16. Morozov I. A., Toksarov V. N., Polyakov I. V., Lifshic E. L. The impact study of mining on the stability of potash mine workings. News of the Tula state university. Sciences of Earth. 2024, no. 1, pp. 226—237. [In Russ].

17. Dinmohammadpour M., Nikkhah M., Goshtasbi K., Ahangari K. Application of the Kaiser effect in in-situ stress measurement in rocks — An overview. The Mining-Geology-Petroleum Engineering Bulletin. 2022, pp. 1—16. DOI: 10.1007/s00603-019-01799-4.

18. Xu Y., Wang H., Li M., Li P., Zhao P., Ji A., Liu L., Liu Y. Evaluation method for the bearing capacity of reinforced concrete beams based on the Kaiser effect. Buildings. 2023, vol. 13, no. 8, pp. 1—14. DOI: 10.3390/buildings13082003.

19. Nikolenko P. V., Shkuratnik V. L., Chepur M. D., Koshelev A. E. Using the Kaiser effect in composites for stressed rock mass control. Journal of Mining Science. 2018, vol. 54, no. 1, pp. 21—26. DOI: 10.1134/S1062739118013282.

20. Toksarov V. N., Beltyukov N. L., Udartsev A. A., Morozov I. A., Pospelov D. A. Results of stress assessment in an intact anhydrite-dolomite rock massif. Gornoe ekho. 2022, no. 2 (87), pp. 62—67. [In Russ]. DOI: 10.7242/echo.2022.2.10.

21. Protosenya A. G., Karasev M. A., Katerov A. M., Petrushin V. V. Analysis of approaches to the prediction of the stress-strain state of the vertical shaft lining constructed in a salt massif. Transport, mining and construction engineering: science and production. 2023, no. 19, pp. 129—137. [In Russ]. DOI: 10.26160/2658-3305-2023-19-129-137.

22. Zhao Y., Wang X., Tang W., Li Y., Lin H., Wang Y., Zhang L. Creep behavior of layered salt rock under triaxial loading and unloading cycles. Applied Rheology. 2023, no. 33, pp. 1—10. DOI: 10.1515/arh-2023-0103.

Подписка на рассылку

Подпишитесь на рассылку, чтобы получать важную информацию для авторов и рецензентов.