Abstract

The article is dedicated to a comprehensive approach to ensuring the stability of underground mining workings in complex geological conditions. It examines the combination of methods and technologies for support, adapted to address issues related to the impact of hydrogeological factors, tectonic stresses, and deformation processes. Special attention is given to the application of composite anchors, shotcrete with reinforcing fibers, polymer coatings, and injection technologies, which prove particularly effective in conditions of increased water saturation and in zones with heightened tectonic stress. Examples of practical applications of these methods are provided, demonstrating their significant contribution to enhancing the safety and durability of underground structures. In conclusion, recommendations are presented for the selection and application of technologies based on the specific operating conditions, with an emphasis on minimizing the risk of failure and ensuring long-term stability of the workings

Keywords

stability of underground workings; complex geological conditions; hydrogeological factors; tectonic stresses; deformation processes; anchor support; shotcrete; polymer coatings

References

  1. Jusupov, B.D., & Kazakbaev, I.K. (2015). Influence of tectonic stresses on the stability of underground mine workings. Mining Journal, 1, 29-34.

  2. Tereshchuk, R.N. (2013). Managing the stability of mine workings with rock boltingMining Information and Analytical Bulletin, 7, 140-151.

  3. Neverov, S.A., Shaposhnik, Yu.N., Neverov, A.A., & Konurin, A.I. (2022). On integration of domestic and foreign classifications of rock mass stability for substantiating mine support systems. Mountain Magazine, 1. doi: 10.17580/gzh.2022.01.10.

  4. Lugantsev, B.B. (2002). Ensuring the stability of underground mine workings in a fractured rock mass. (Doctoral dissertation in Technical Sciences, specialty 25.00.22 – Geotechnology. Mines. Moscow, Russian Federation).

  5. Petrov, N.A., & Chernykh, L.A. (2019). Application technologies of fiber-reinforced shotcrete in underground workings. Mining Science and Technology, 4(2), 21-28.

  6. Semenov, V.K., & Kotov, P.Yu. (2020). Application of polymer coatings for the protection of underground structures in high humidity conditions. Mining Equipment and Electromechanics, 3, 50-55.

  7. Ivanov, S.V. (2017). Composite materials for mine support systems: Problems and prospects. Bulletin of the Mining Institute, 226, 87-93.

  8. Mukhin, Yu.N. (2016). Injection technologies for strengthening the rock mass of underground workings. Construction and Geotechnics, 3, 97-103.