Regulated maintenance and repair of quarry excavators considering real-world conditions and operating modes

The article addresses the interrelation between operational loads under actual working conditions and the availability of mining excavators within the framework of the current maintenance and repair (MRO) system. It highlights a mismatch between the actual intensity of resource consumption and the maintenance intervals recommended by equipment manufacturers for standard (baseline) operating conditions. Based on field data collected from quarries in Russia and Uzbekistan, the study establishes that the primary factor influencing resource consumption is the actual load on excavator drives, which is determined by the bucket trajectory during rock excavation. The authors propose a set of substantiated operational adjustments aimed at aligning actual resource consumption rates with those defined under baseline conditions. Such alignment ensures conformity of the repair cycle parameters with the manufacturer’s specifications. A rational combination of hoisting and crowding drive speeds, along with an optimized bucket trajectory, enables efficient bucket filling under nominal loads, thereby preventing drive overloads and ensuring compliance with target values for the average excavation cycle time. The findings serve as a foundation for developing operating mode recommendations for various mining conditions and can be effectively utilized in the creation of digital twins for quarry excavators.

Khamidov O. U., Shibanov D. A. Regulated maintenance and repair of quarry excavators considering real-world conditions and operating modes. MIAB. Mining Inf. Anal. Bull. 2025;(12-3):152—167. [In Russ]. DOI: 10.25018/0236_1493_2025_123_0_152.

Khamidov O. U.¹, Postgraduate Student, https://orcid.org/0009-0000-7636-479X, e-mail: khamidovoybek417@gmail.com;
Shibanov D. A.¹, Cand. Sci. (Eng.), Associate Professor, https://orcid.org/0000-0002-6203-0219, e-mail: shibanov_da@pers.spmi.ru.
¹ Empress Catherine II Saint Petersburg Mining University, Saint-Petersburg, Russia, khamidovoybek417@gmail.com.

Khamidov O. U., e-mail: khamidovoybek417@gmail.com.

1. Velikanov V. S., Chernukhin S. A., Telminov N. S., Dremin A. V., Lomovtseva N. V., Sitdikova S. V. On the influence of the granulometry of blasted rock mass on the stress distribution in the working equipment of a quarry excavator. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta im. G. I. Nosova. 2024; vol. 22, no. 4, pp. 30–43. [In Russ]. https://doi.org/10.18503/1995-2732-2024-22−4-30−43.

2. Khoreshok A. A., Dubinkin D. M., Markov S. O., Tyulenev M. A. On the change in effective performance of excavators when using mining dump trucks with different body capacities. Vestnik Kuzbasskogo gosudarstvennogo tekhnicheskogo universiteta. 2021; no. 6(148):85–93. [In Russ]. https://doi.org/10.26730/1999-4125-2021-6-85−93

3. Zhuravlev A. G., Glebov I. A., Cherepanov V. A. On improving the productivity and technical readiness of powerful domestic excavators. Problemy nedropolzovaniya. 2023; no. 4:76–88. [In Russ]. https://doi.org/10.25635/2313−1586.2023.04.076

4. Gerike P. B., Gerike B. L., Shakhmanov V. N. Selection and justification of a criterion for diagnosing misalignment of shaft lines in quarry excavators. Tekhnika i tekhnologiya gornogo dela. 2021; no. 3(14):50–60. [In Russ]. https://doi.org/10.26730/2618-7434-2021-3-50−60

5. Safiullin R. N., Katsuba Yu. N., Ungefuk A. A., Khisamutdinova E. L., Khokhlov A. V. Bootstrap method for monitoring the safety of motion control systems of highly automated mining machines. Mining Industry Journal. 2025; no. 1S:73–80. [In Russ]. https://doi.org/10.30686/1609-9192-2025-1S-73−80

6. Kovalev M. A., Moskvichev V. V. Reliability of open-pit excavators at coal mines in Kuzbass. Tselostnost i resurs v ekstremalnykh usloviyakh. 2024; no. 1:300–303. [In Russ]. https://doi.org/10.24412/cl-37269−2024−1-300−303

7. Canelón R., Carrasco C., Rivera F. (2024). Design of a remote assistance model for truck maintenance in the mining industry. Journal of Quality in Maintenance Engineering, vol. 30, no. 1, pp. 175–201. https://doi.org/10.1108/JQME-02−2023−0024

8. Fedorova E. R., Morgunov V. V., Pupysheva E. A. Effect of variation of internal diameter along the length of a rotary kiln on material movement. Non-ferrous Metals. 2024; pp. 28–34. https://doi.org/10.17580/nfm.2024.01.05

9. Fomin S. I., Ljeljen A. Improvement of the methods for determining ore losses when designing cement raw material deposit mining by surface miner combines. Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering, 2024, vol. 335, no. 2, pp. 202–208. https://doi.org/10.18799/24131830/2024/2/4203

10. Grabskiy A. A., Sergeev V. Yu., Grabskaya E. P. Substantiation of the choice of maintenance and repair strategy for open-pit excavators. Ugol’. 2021; no. 2:14–17. [In Russ]. https://doi.org/10.18796/0041-5790-2021-2-14−17

11. Fedorova E.R; Morgunov, V.; Lobko, K.; Pupysheva, E. Review: Axial Motion of Material in Rotary Kilns. Eng. 2025, 6, 106. https://doi.org/10.3390/eng6060106

12. Babaei Khorzoughi M., Hall R. A Study of Digging Productivity of an Electric Rope Shovel for Different Operators. Minerals. 2016; 6:48. https://doi.org/10.3390/min6020048

13. Lukashuk O. A., Letnev K. Yu., Lukashuk M. D. Identification of the bucket position of a quarry excavator in the face. Aktual’nye problemy povysheniya effektivnosti i bezopasnosti ekspluatatsii gornoshakhtnogo i neftepromyslovogo oborudovaniya. 2019; vol. 1: pp. 14–20. [In Russ].

14. Cheremisina O. V., Balandinsky D. A., Gorbacheva A. A., Lysenko M. R., Yinzhou L. Physicochemical features of action of ethoxylated esters of phosphoric acid with different degree of ethoxylation in conditions of froth flotation of apatite. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2024;708:135974. https://doi.org/10.1016/j.colsurfa.2024.135974

15. Rakhutin M. G., Tran V. H., Krivenko A. V., Giang Q.Kh. Impact of the technical condition of main pumps on fuel consumption in a hydraulic excavator. Mining Science and Technology (Russia). 2025;10(1):67–74. https://doi. org/10.17073/2500-0632-2024-01−179

16. Andreeva L. I. Selection of maintenance strategy for mining equipment. Izvestiya Vysshikh Uchebnykh Zavedeniy. Gornyi Zhurnal. 2021; no. 4: 83–91. [In Russ.]. https://doi.org/10.21440/0536-1028-2021-4-83−91

17. Agagena Abdelvakhab, Repkina K. S., Mikhailov A. V. Adjustment of maintenance regulations for a quarry hydraulic excavator at the Bukhadra mine. Transport, Mining and Construction Mechanical Engineering: Science and Production. 2024; no. 24: 146–151. [In Russ.]. https://doi.org/10.26160/2658-3305-2024-24−146−151

18. Andreeva L. I., Abramov S. V. Choosing the optimal method for restoring excavator parts based on economic feasibility. Mining Equipment and Electromechanics. 2022; no. 6(164): 33–39. [In Russ]. https://doi.org/10.26730/1816-4528-2022-6-33−39

19. Admakin М. А., Admakina О. N., Timofeev D. Yu., Khalimonenko А. D. Deformation processes during high-speed milling of aluminum alloys. Tsvetnye Metally. 2025; no. 3: 75−80. [In Russ.] DOI 10.17580/tsm.2025.03.11

20. Kazanin O. I., Ilinets A. A. Ensuring the excavation workings stability when developing excavation sites of flat-lying coal seams by three workings. Journal of Mining Institute. 2022. Vol. 253, p. 41−48. https://doi.org/10.31897/PMI.2022.1

21. Madyarov D. A. Study of maintenance and repair of equipment. In: Science of the Youth the Future of Russia. Proceedings of the 6th International Scientific Conference of Promising Developments by Young Scientists (Kursk, December 9–10, 2021), vol. 5. Kursk: Southwest State University, 2021, pp. 97–100. [In Russ.]. EDN: NOAHJJ

22. Sheshukova E. I., Shibanov D. A., Ivanov S. L., Shishkin P. V. Assessment of loads at the working attachment of a mine shovel (Part 2). Russian Mining Industry. 2024; vol. 4: pp. 108–114. [In Russ.]. https://doi.org/10.30686/1609-9192-2024-4-108−114

23. Vinogradov Yu. I., Khokhlov S. V., Zigangirov R. R., Miftakhov A. A., Suvorov Yu. I. Optimization of specific energy consumption for rock blasting at deposits with complex geological structures. Journal of Mining Institute. 2024; vol. 266: pp. 231–245. [In Russ.]. EDN: RUUFNM

24. Bobobekov O. K. Factors affecting the performance of road construction and municipal machines. Vestnik Grazhdanskikh Inzhenerov [Bulletin of Civil Engineers]. 2015; vol. 6(53): pp. 180–184. [In Russ.].

25. Annakulov T., Gaibnazarov S., Askarov A., Mamadieva L. Prospects for the use of cyclic-flow technology for the transportation of rocks at the Yoshlik-1 quarry of JSC Almalyk mining and metallurgical combine. E3S Web of Conferences. 2023; 414:06007. https://doi.org/10.1051/e3sconf/202341706007

26. Marinin M. A., Rakhmanov R. A., Alenichev I. A., Afanasyev P. I., Sushkova V. I. Effect of grain size distribution of blasted rock on WK-35 shovel performance. Mining Informational and Analytical Bulletin. 2023; no. 6: pp. 111–125. [In Russ.]. https://doi.org/10.25018/0236_1493_2023_6_0_111

27. Khoreshok А. А., Kudrevatykh A. V., Ashcheulov A. S., Vinidiktov A. V., Kantovich L. I. Increasing life of pit dump truck motor-wheel gearboxes by introducing the monitoring of the actual technical condition. Mining Science and Technology (Russia). 2021;6(4):267–276. [In Russ.] https://doi.org/10.17073/2500−0632- 2021−4-267−276

28. Kurganov V. M., Gryaznov M. V., Kolobanov S. V. Assessment of operational reliability of quarry excavator-dump truck complexes. Journal of Mining Institute. 2020; vol. 241: pp. 10–21. [In Russ.]. https://doi.org/10.31897/PMI.2020.1.10

29. Florea V. A., Toderaș M. Efficiency of maintenance activities in aggregate quarries: a case study of wear parts on loaders and excavators. Applied Sciences. 2024; vol. 14: pp. 7649. https://doi.org/10.3390/app14177649

30. Makarova V. V. Review and analysis of the application of methods for diagnosing the stress-strain state of open-pit excavator components. Izvestiya vysshikh uchebnykh zavedeniy. Gorny zhurnal. 2024; no. 1: pp. 48–60. [In Russ.]. https://doi.org/10.21440/0536-1028-2024-1-48−60

31. Feng Y., Wu J., Lin B., Guo C. Excavating trajectory planning of a mining rope shovel based on material surface perception. Sensors. 2023;23(15):6653. https://doi.org/10.3390/s23156653

32. Meng Y., Fang H., Liang G., Gu Q., Liu L. Bucket trajectory optimization under the automatic scooping of LHD. Energies. 2019; no. 12(20): pp. 3919. https://doi.org/10.3390/en12203919

33. Dunbabin M., Corke P. Autonomous excavation using a rope shovel. Journal of Field Robotics. 2006; no. 23(6−7): pp. 379−394. https://doi.org/10.1002/rob.20132

34. Khamidov O. U., Shibanov D. A., Kolpakov V. O. Influence of the peculiarities of rock mass loading by open-pit excavator on its productivity. Transport, Mining and Construction Mechanical Engineering: Science and Production. 2024; no. 28: pp. 148–153. [In Russ.]. https://doi.org/10.26160/2658-3305-2024-28−148−153

35. Velikanov V. S., Dremin A. V., Lukashuk O. A., Chernukhin S. A., Lukashuk M. D. Digital transformation of mining enterprises and terotechnology of ground transportation vehicles. Mining Equipment and Electromechanics. 2024; no. 1 (171): pp. 50–56. [In Russ.]. https://doi.org/10.26730/1816-4528-2024-1-50−56

36. Wang X., Sun W., Li E., Song X. Energy-minimum optimization of the intelligent excavating process for large cable shovel through trajectory planning. Structural and Multidisciplinary Optimization. 2018; no. 58: pp. 2219−2237. https://doi.org/10.1007/s00158-018-2017-0

37. Lin G. Y., Han H. Z., Zhao J., Li A. F. Research on optimal excavating trajectory of large mining shovel. Advanced Materials Research. 2014; no. 945: pp. 633−641. https://doi.org/10.4028/www.scientific.net/AMR.945−949.633