Petlovanyi М. Substantiation of rational backfill complex placement when eliminating technogenic cavities of iron-ore deposits based on paste backfilling technology

Details

Parent Category: Geo-Technical Mechanics, 2025

Category: Geo-Technical Mechanics, 2025, Issue 173

Geotech. meh. 2025, 173, 158-174

 

SUBSTANTIATION OF RATIONAL BACKFILL COMPLEX PLACEMENT WHEN ELIMINATING TECHNOGENIC CAVITIES OF IRON-ORE
DEPOSITS BASED ON PASTE BACKFILLING TECHNOLOGY

Petlovanyi М.

Dnipro University of Technology

UDC 622.273.21

Language: English

Abstract. The research purpose is to substantiate the rational placement of the backfill complex to ensure the effective elimination of technogenic cavities formed as a result of underground and open-pit mining of iron-ore deposits, taking into account the rheological properties of paste backfill mixtures and minimizing transportation costs. The research uses an experimental method, including the preparation of paste mixtures with a solid part content of 73–75% and the study of their rheological characteristics using the NDJ-8AT digital rotational viscometer. The method of technical-economic modeling is also used to estimate the capital and operating costs of transporting the paste mixture through a pipeline and conveyor depending on the variable distance between the tailings dump and the backfill complex, as well as to determine its optimal placement by minimizing the total costs. The expediency of using the Herschel-Bulkley model to describe the rheological behavior of paste backfill mixtures based on beneficiation tailings, which form the basis for determining a set of parameters for their transportation through pipeline transport, has been proven. It has been found that the total transportation costs are parabolic in nature and reach a minimum at the balance of pipeline and conveyor lengths, which makes it possible to determine the optimal zone for the placement of the mobile backfill complex, which is located within 3300–4700 m from the tailings dump. Rational locations and positions for moving the mobile backfill complex between groups of technogenic cavities are recommended. The Herschel-Bulkley rheological models for paste backfill mixtures with a solid part content of 73–75%, made from coarse iron-ore beneficiation tailings, have been specified. For the first time, a comprehensive model for optimizing the placement of a mobile backfill complex is proposed, taking into account the rheological properties of the mixture and combined transportation. The results are useful in applying the concept of eliminating technogenic cavities in iron-ore regions, namely, in planning the placement of a mobile backfill complex for eliminating technogenic cavities, in particular in the Kryvyi Rih Basin. The implementation of the concept may improve the environment through the utilization of beneficiation tailings, to block the development of the earth’s surface deformations and to fully restore the disturbed land areas.

Keywords: technogenic cavities, iron-ore deposits, concept, beneficiation tailings, paste backfilling, optimization, minimization, costs.

1. Vidal, O., Le Boulzec, H., Andrieu, B., and Verzier, F. (2021), “Modelling the demand and access of mineral resources in a changing world”, Sustainability, vol. 14(1), 11. https://doi.org/10.3390/su14010011

2. Humphreys, D. (2023), “Mining and might: Reflections on the history of metals and power”, Mineral Economics, vol. 37(2), pp. 193–205. https://doi.org/10.1007/s13563-023-00377-z

3. Alsagr, N., Ozturk, I., and Sohail, S. (2024), “Digital government and mineral resources trade: The role of digital financial inclusion”, Resources Policy, vol. 97, 105245. https://doi.org/10.1016/j.resourpol.2024.105245

4. Liu, Y., Wang, P., Gojenko, B., Yu, J., Wei, L., Luo, D., and Xiao, T. (2021), “A review of water pollution arising from agriculture and mining activities in Central Asia: Facts, causes and effects”, Environmental Pollution, vol. 291, 118209. https://doi.org/10.1016/j.envpol.2021.118209

5. Batur, M., and Babii, K. (2022), “Spatial assessment of air pollution due to mining and industrial activities: A case study of Kryvyi Rih, Ukraine”, IOP Conference Series: Earth and Environmental Science, vol. 970(1), 012004. https://doi.org/10.1088/1755-1315/970/1/012004

6. Petlovanyi, M., Sai, K., Malashkevych, D., Popovych, V., and Khorolskyi, A. (2023), “Influence of waste rock dump placement on the geomechanical state of underground mine workings”, IOP Conference Series: Earth and Environmental Science, vol. 1156(1), 012007. https://doi.org/10.1088/1755-1315/1156/1/012007

7. Bazaluk, O., Petlovanyi, M., Sai, K., Chebanov, M., and Lozynskyi, V. (2024), “Comprehensive assessment of the earth’s surface state disturbed by mining and ways to improve the situation: Case study of Kryvyi Rih Iron-ore Basin, Ukraine”, Frontiers in Environmental Science, vol. 12, 1480344. https://doi.org/10.3389/fenvs.2024.1480344

8. Pysmennyi, S., Kalinichenko, V., Shvaher, N., Panova, S., and Mutambo, V. (2025), “Combined surface-underground mining of Kryvyi Rih basin deposits beneath the bottom and walls of active open pits”, IOP Conference Series: Earth and Environmental Science, vol. 1457(1), 012007. https://doi.org/10.1088/1755-1315/1457/1/012007

9. Medvedieva, O., Yakubenko, L., Kopach, P., Lubynskyi, R., Halchenko, Z., and Zhanakova, R. (2024), “Classification of methods for treating beneficiation waste in the process of formation of tail repository”, Geo-Technical Mechanics, vol. 169, pp. 5–17. https://doi.org/10.15407/geotm2024.169.005

10. Petlovanyi, M. (2024), “Features of surface subsidence zones formed under the influence of underground mining of steeply dipping ore deposits in the Kryvyi Rih iron ore basin”, Collection of Research Papers of the National Mining University, vol. 79, pp. 63–83. https://doi.org/10.33271/crpnmu/79.063

11. Krukovskyi, O.P., Kurnosov, S.A., Makeyev, S.Yu., and Stadnychuk, M.M. (2023), “Determination of the reliability of mine support equipment considering its deformation risks”, Strength of Materials, vol. 55(3), pp. 475–483. https://doi.org/10.1007/s11223-023-00540-5

12. Petlovanyi, M., Chebanov, M., Sai, K., and Khalymendyk, O. (2025), “A new approach to restoring the earth’s surface heavily disturbed by mining activities”, IOP Conference Series: Earth and Environmental Science, vol. 1481(1), 012004. https://doi.org/10.1088/1755-1315/1481/1/012004

13. Petlovanyi, M., and Sai, K. (2024), “Research into cemented paste backfill properties and options for its application: Case study from a Kryvyi Rih Iron-ore Basin, Ukraine”, Mining of Mineral Deposits, vol. 18(4), pp. 162–179. https://doi.org/10.33271/mining18.04.162

14. Cheng, H., Wu, S., Zhang, X., and Wu, A. (2020), “Effect of particle gradation characteristics on yield stress of cemented paste backfill”, International Journal of Minerals, Metallurgy and Materials, vol. 27(1), pp. 10–17. https://doi.org/10.1007/s12613-019-1865-y

15. Wang, W., Yu, B., Xu, W., Yang, K., Yin, Y., and Li, M. (2024), “Pipeline transport performance of paste backfill slurry in long-distance underground backfilling: A review”, Minerals, vol. 14(12), 1238. https://doi.org/10.3390/min14121238

16. Ahmed, H.M., Bharathan, B., Kermani, M., Hassani, F., Hefni, M.A., Ahmed, H.A.M., Hassan, G.S.A., Moustafa, E.B., Saleem, H.A., and Sasmito, A.P. (2022), “Evaluation of rheology measurements techniques for pressure loss in mine paste backfill transportation”, Minerals, vol. 12(6), 678. https://doi.org/10.3390/min12060678

17. Gharib, N., Bharathan, B., Amiri, L., McGuinness, M., Hassani, F.P., and Sasmito, A.P. (2017), “Flow characteristics and wear prediction of Herschel‐Bulkley non‐Newtonian paste backfill in pipe elbows”, The Canadian Journal of Chemical Engineering, vol. 95(6), pp. 1181–1191. https://doi.org/10.1002/cjce.22749

18. Boger, D.V. (2013), “Rheology of slurries and environmental impacts in the mining industry”, Annual Review of Chemical and Biomolecular Engineering, vol. 4(1), pp. 239–257. https://doi.org/10.1146/annurev-chembioeng-061312-103347

19. Hrinov, V.H., Khorolskyi, A.O., and Mamaikan, O.R. (2019), “Assessment of the condition and optimization of parameters of technological schemes of coal mines”, Bulletin of the Kryvyi Rih National University, vol. 48, pp. 31–37.

20. Khorolskyi, A.O., Kosenko, A.V., Vynohradov, Yu.O., and Chobotko, I.I. (2023), Naukovi osnovy obgruntuvannia mezh oblasti ratsionalnoho proiektuvannia pry vidpratsiuvanni rodovyshch korysnykh kopalyn [Scientific foundations of substantiation of the boundaries of the rational design area in the development of mineral deposits], Lira, Dnipro, Ukraine.

 

Petlovanyi Mykhailo, Candidate of Technical Sciences, Associate Professor of the Department of Mining Engineering and Education, Dnipro University of Technology, Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. (Corresponding author),ORCID 0000-0002-8911-4973

• < Prev
• Next >