Influence of dip angle of lithologically nonuniform interburden on horizontal mine opening stability during driving

The lithological structure of the Khibiny Massif includes a set of dikes, the location and morphology of which are studied. This article describes the change in the stress–strain behavior of rock mass at the boundary of a single horizontal opening driven at a depth of 300 m in rock mass with a lithological discontinuity and under the action of the tectonic stresses. The stress–strain analysis took into account the dip angle and the physical and mechanical properties of the dike. The stresses and strains were traced to the intersection with the dike, directly in the dike and at a distance from it at 3 check points: in the roof of the mine opening, in the springing block and in the sidewall of the opening. Moreover, the stress concentration factor was determined before and after drivage of the opening. The deformations of the boundary of the mine opening were also found. The problem was solved using 3D finite element-based modeling in the Abaqus CAE environment. The most favorable direction of driving under the lithological discontinuity is defined, and a supposition on the zone of influence of the dike on the stability of the mine opening is put forward.

Basalaeva P., Kuranov A. D. Influence of dip angle of lithologically nonuniform interburden on horizontal mine opening stability during driving. MIAB. Mining Inf. Anal. Bull. 2024;(3):17-30. [In Russ]. DOI: 10.25018/0236_1493_2024_3_0_17.

P. Basalaeva, Graduate Student, Empress Catherine II Saint-Petersburg Mining University, 199106, Saint-Petersburg, Russia, e-mail: basalaeva_pv@pers.spmi.ru, ORCID ID: 0000-0002-6473-9926,
A.D. Kuranov, Ph.D., Director of Science and Innovation, JSC «Giprotsvetmet», Moscow, 129075, Russia, e-mail: a.kuranov@g-cm.ru, ORCID ID: 0000-0002-2032-4446.

P. Basalaeva, e-mail: basalaeva_pv@pers.spmi.ru.

1. Korchak P. Investigation of regularities of brittle fracture formation around mine workings in overstressed rocks at the mines of Kirovsk branch of JSC «Apatit». E3S Web of Conferences. 2018, vol. 56, article 02023. DOI: 10.1051/e3sconf/20185602023.

2. Verbilo P. E., Vilner M. A. Study of the jointed rock mass uniaxial compression strength anisotropy and scale effect. MIAB. Mining Inf. Anal. Bull. 2022, no. 6-2, pp. 47—59. [In Russ]. DOI: 10.25 018/0236_1493_2022_62_0_47.

3. Karasev M. A., Protosenya A. G., Katerov A. M., Petrushin V. V. Analysis of shaft lining stress state in anhydrite-rock salt transition zone. Rudarsko Geolosko Naftni Zbornik. 2022, vol. 12, pp. 151—162. DOI: 10.17794/rgn.2022.1.13.

4. Protosenya A. G., Alekseev A. V., Verbilo P. E. Prediction of the stress-strain state and stability of the front of tunnel face at the intersection of disturbed zones of the soil mass. Journal of Mining Institute. 2022, vol. 254, pp. 252—260. [In Russ]. DOI: 10.31897/PMI.2022.26.

5. Petrov D. N., Zubkov V. P. Influence of stope sill design on the loss from freezing of muck during ore drawing in conditions of negative temperatures in the working excavation. Russian Mining Industry. 2023, vol. 2, pp. 57—61. DOI: 10.30686/1609-9192-2023-2-57-61.

6. Korchak P. A. Geomechanical prediction of growth of brittle fracture zones in the vicinity of underground excavations in over-stress rock mass. MIAB. Mining Inf. Anal. Bull. 2021, no. 5, pp. 85—98. [In Russ]. DOI: 10.25018/0236_1493_2021_5_0_85.

7. Onokhin F. M. Osobennosti struktury Khibinskogo massiva i apatit-nefelinovykh mestorozhdeniy [Features of the structure of the Khibiny massif and apatite-nepheline deposits], Leningrad, Nauka, 1975, 106 p.

8. Turchaninov I. A., Volarovich M. P., Bondarenko A. T., Kovaleva G. A., Medvedev R. V., Tomashevskaya I. S., Tyuremnov V. A. Atlas fizicheskikh svoystv mineralov i porod Khibinskikh mestorozhdeniy [Atlas of physical properties of minerals and rocks of the Khibiny deposits], Leningrad, Nauka, 1975, 71 p.

9. Turchaninov I. A., Markov G. A., Ivanov V. I., Kozyrev A. A. Tektonicheskie napryazheniya i ustoychivost' gornykh vyrabotok [Tectonic stresses and stability of mine workings], Leningrad, Nauka, 1978, 256 p.

10. Kozyrev A. A., Zhirov D. V., Klimov S., Semenova I. E., Avetisyan I. M., Savchenko S. N., Semenova I. E., Avetisyan I. M., Savchenko S. N. 3D-modeling of structural heterogeneities of rock massifs of the central type of the Fennoscandinavian crystalline shield. Geomekhanicheskie polya i protsessy: eksperimental'no-analiticheskie issledovaniya formirovaniya i razvitiya ochagovykh zon katastroficheskikh sobytiy v gornotekhnicheskikh i prirodnykh sistemakh. T. 2 [Geomechanical fields and processes: experimental and analytical studies of the formation and development of focal zones of catastrophic events in mining and natural systems, vol. 2], Novosibirsk, Izd-vo SO RAN, 2019, 543 p. DOI: 10.15372/GEOMECHANICAL2019OVN.

11. Kozyrev A. A., Kagan M. M., Konstantinov K. N., Zhirov D. V. Changes in strain and slope geostructural block in the preparation and realization of technogenic earthquake. Russian Mining Industry Journal. 2021, no. 6, pp. 94—98. [In Russ]. DOI: 10.30686/1609-9192-2021-6-94-98.

12. Korchak P. A., Karasev M. A. Geomechanical prediction of the brittle fracture zones in rocks in the vicinity of the excavation junction of Ltd «Apatit» mines. Sustainable Development of Mountain Territories. 2023, vol. 15, no. 1, pp. 67—80. [In Russ]. DOI: 10.21177/1998-4502-2023-15-1-67-80.

13. Marysyuk V. P., Shilenko S. Yu., Andreev A. A., Shabarov A. N. Interwell area design procedure to generate safe zones in rockburst-hazardous conditions of Talnakh deposits. Gornyi Zhurnal. 2023, no. 1, pp. 106—112. [In Russ]. DOI: 10.17580/gzh.2023.01.18.

14. Belyakov N. A., Morozov K. V., Emelyanov I. A. Data processing in full-scale in-situ stress testing by overcoring. Gornyi Zhurnal. 2023, no. 5, pp. 89—96. [In Russ]. DOI: 10.17580/gzh.2023.05.13.

15. Sabyanin G. V., Alborov A. E., Andreev A. A., Rumyantsev A. E. Optimizing borehole location for stress state assessment by geomechanical method of core discing. Gornyi Zhurnal. 2022, no. 10, pp. 58—63. [In Russ]. DOI: 10.17580/gzh.2022.10.09.

16. Jingyuan W., Xianghui D., Weiping C. Numerical analysis on the stability of layered surrounding rock tunnel under the conditions of different inclination angle and thickness. American Journal of Traffic and Transportation Engineering. 2019, vol. 4, no. 2, pp. 67—74. DOI: 10.11648/j. ajtte.20190402.14.

17. Jenck O., Dias D. Analyse tridimensionnelle en différences finies de l'interaction entre une structure en béton et le creusement d'un tunnel à faible profondeu. Geotechnique. 2004, vol. 54, no. 8, pp. 519—528. DOI: 10.1680/geot.2004.54.8.519.

18. Zhang J., Kuang M., Zhang Y., Feng T. Evaluation and analysis of the causes of a landslide and treatment measures during the excavation of a tunnel through a soil-rock interface. Engineering Failure Analysis. 2021, vol. 130, article 105784. DOI: 10.1016/j.engfailanal.2021.105784.

19. Ngoc Anh Do, Daniel Dias, van Diep Dinh, Tien Tung Tran, van Canh Dao, Dao Viet Doan, Phuc Nhan Nguyen Behavior of noncircular tunnels excavated in stratified rock masses — Case of underground coal mines. Journal of Rock Mechanics and Geotechnical Engineering. 2019, vol. 11, no. 1, pp. 99—110. DOI: 10.1016/j.jrmge.2018.05.005.

20. Sun X., Feng Chen, Miao Ch., Song P., Li G., Zhao Ch., Xia X. Physical modeling of deformation failure mechanism of surrounding rocks for the deep-buried tunnel in soft rock strata during the excavation. Tunnelling and Underground Space Technology. 2018, vol. 74, pp. 247—261. DOI: 10.1016/j.tust.2018.01.022.

21. Nunes M. A., Meguid M. A. A study on the effects of overlying soil strata on the stresses developing in a tunnel lining. Tunnelling and Underground Space Technology. 2009, vol. 24, pp. 716—722. DOI: 10.1016/j.tust.2009.04.002.

22. Zhang D., Huang H., Hu Q., Jiang F. Influence of multi-layered soil formation on shield tunnel lining behavior. Tunnelling and Underground Space Technology. 2015, vol. 47, pp. 123—135. DOI: 10.1016/j.tust.2014.12.011.

23. Demenkov P. A., Romanova Е. L., Kotikov D. A. Stress–strain analysis of vertical shaft lining and adjacent rock mass under conditions of irregular contour. MIAB. Mining Inf. Anal. Bull. 2023, no. 11, pp. 33—48. [In Russ]. DOI: 10.25018/0236_1493_2023_11_0_33.

24. Popov M. G. Prediction of the mine working stability in the massif which are crossing zone of weakening. Journal of Mining Institute. 2012, vol. 199, pp. 51—54. [In Russ].

25. Cherdantsev N. V. Investigation of the state of anisotropic rock massif in the vicinity of the excavation near the disjunctive disturbance. Vestnik of safety in coal mining scientific center. 2017, no. 2, pp. 34—40. [In Russ].

26. Petrov D. N., Moiseev V. I., Larionov R. I. Stress-strain state of rocks around a single mine in an inhomogeneous massif. Journal of Mining Institute. 2006, vol. 168, pp. 231—234. [In Russ].

27. Vásárhelyi B., Kovács D. Empirical methods of calculating the mechanical parameters of the rock mass. Periodica Polytechnica Civil Engineering, 2017, vol. 61, no. 1, pp. 39—50. DOI: 10.3311/ PPci.10095.

28. Zaslavskiy Yu. Z. Issledovanie proyavleniy gornogo davleniya v kapital'nykh vyrabotkakh glubokikh shakht Donetskogo basseyna [Study of manifestations of rock pressure in capital workings of deep mines of Donetsk basin], Moscow, Nedra, 1966, 180 p.

29. Verbilo P., Karasev M., Belyakov N., Iovlev G. Experimental and numerical research of jointed rock mass anisotropy in a three-dimensional stress field. Rudarsko-Geološko-Naftni Zbornik. 2022, vol. 37, no. 2, pp. 109—122. DOI: 10.17794/rgn.2022.2.10.

30. Protosenya A., Vilner M. Assessment of excavation intersections’ stability in jointed rock masses using the discontinuum approach. Rudarsko-Geološko-Naftni Zbornik. 2022, vol. 37, no. 2, pp. 137—147. DOI: 10.17794/rgn.2022.2.12.