Technology of an open pit refinement under limit stability of sides

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Authors:


S.K.Moldabayev*, orcid.org/0000-0001-8913-9014, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Zh.Zh.Sultanbekova, orcid.org/0000-0002-6997-5389, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.A.Adamchuk, orcid.org/0000-0002-8143-3697, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

N.O.Sarybaev, orcid.org/0000-0001-9856-803X, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.N.Nurmanova, orcid.org/0000-0002-1761-7539, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2022, (6): 005 - 010

https://doi.org/10.33271/nvngu/2022-6/005



Abstract:



Purpose.
To establish the feasibility of refining deep open-pit mines below the boundary of the use of combined motor-conveyor transport with an increased slope angles of the pit walls using the developed transport unit for reloading rocks to overlying horizons during the reactivation of pillars under transport berms.


Methodology.
Preparation of a digital block model of the deposit, the elaboration of 3D geomechanical models for the dynamics of mining, 2D and 3D numerical simulation of the rock stress-strain state of the outcrops of opencast workings, mathematical modeling of stepwise ore reserves and mining schedule, patent research and feasibility study.


Findings.
It is advisable to carry out mining in terms of the marginal rock state with an increase in the slope of the pit sides below the limit of application of the cyclic and continuous method in ultra-deep open pits. Such design of pit sides is achieved when benches are mined from top to bottom within the boundaries of steeply inclined layers with the use of inter-bench loaders of the developed designed in the completion zone. Provisions for the selection and feasibility of using the loader in the deep zone are formulated based on demarcation of application zones of cyclic (road transport) and cyclic-flow (combined road-conveyor transport) technologies.


Originality.
Schematization of the mining operation was performed based on the calculated values of safety factor of sides, which allows increasing the slope angles of the pit walls of even ultra-deep open pits in the completion zone. It was found that with deepening of mining, the zones of potential sliding move away from the loose overburden to lower ore benches closer to the final depth of the Kacharsky open pit (760 m), but the safety factor corresponds to the required value according to the design standards.


Practical value.
An increase in the slope of the pit walls in the completion zone can be achieved using the developed loading installation, the main difference of which is that it can be moved without dismantling under conditions of reactivation of transport pillars (with an increase in lifting height by 1.54.5 times compared to the known equipment).



Keywords:
ore quarry, deep zone, steeply inclined layer, slope stability, transport pillar, loading device, skip

References.


1. Anisimov, O., Symonenko, V., Cherniaiev, O., & Shustov,O. (2018). Formation of safety conditions for development of deposits by open mining. E3S Web of Conferences, 60. https://doi.org/10.1051/e3sconf/20186000016.

2. Kuzmenko, S., Kaluzhnyi, Y., Moldabayev, S., Shustov, O., Adamchuk, A., & Toktarov, A. (2019). Optimization of position of the cyclical-and-continuous method complexes when cleaning-up the deep iron ore quarries. Mining of Mineral Deposits, 13(3), 104-112. https://doi.org/10.33271/mining13.03.104.

3. Moldabayev, S., Adamchuk, A., Sarybayev, N., & Shustov, A. (2019). Improvement of open cleaning-up schemes of border Mineral reserves. International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management,SGEM,19(1.3),331-338. https://doi.org/10.5593/sgem2019/1.3/S03.042.

4. Moldabayev, S., Sultanbekova, Z., Adamchuk, A., & Sarybayev, N. (2019). Method of optimizing cyclic and continuous technology complexes location during finalization of mining deep ore open pit mines. International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management,SGEM,19(1.3),407-414. https://doi.org/10.5593/sgem2019/1.3/S03.052.

5. Bazaluk, O., Ashcheulova, O., Mamaikin, O., Khorolskyi, A., Lozynskyi, V., & Saik, P. (2022). Innovative Activities in the Sphere of Mining Process Management. Frontiers in EnvironmentalScience,10. https://doi.org/10.3389/fenvs.2022.878977.

6. Shustov, O., Pavlychenko, A., Bondarenko, A., Bielov, O., Bory­sov­ska,O., & Abdiev, A. (2021). Substantiation into Parameters of Carbon Fuel Production Technology from Brown Coal. Materials Science Forum, 1045, 90-101. https://doi.org/10.4028/www.scientific.net/MSF.1045.90.

7. Zhao, H., Tian, Y., Guo, Q., Li, M., & Wu, J. (2020). The slope creep law for a soft rock in an open-pit mine in the Gobi region of Xinjiang, China. International Journal of Coal Science & Technology, 7(2), 371-379. https://doi.org/10.1007/s40789-020-00305-4.

8. Zevgolis, I.E., Deliveris, A.V., & Koukouzas, N.C. (2019). Slope failure incidents and other stability concerns in surface lignite mines in Greece. Journal of Sustainable Mining, 18(4), 182-197. https://doi.org/10.1016/j.jsm.2019.07.001.

9. Roh, J., Scaringi, G., Boh, J., Kycl, P., & Najser, J. (2020). Revisiting strength concepts and correlations with soil index properties: insights from the Dobkoviky landslide in Czech Republic. Landslides, 17(3), 597-614. https://doi.org/10.1007/s10346-019-01306-4.

10. Hongze, Z., Dongyu, W., Ming, M., & Kaihui, Z. (2020). Parameter inversion and location determination of evolutionary weak layer for open-pit mine slope. International Journal of Coal Science & Technology, 7(4), 714-724. https://doi.org/10.1007/s40789-020-00337-w.

11. Sedina, S.., Abdikarimova, G.B., Altayeva, A.A., & Rakhimov,N.D. (2021). Application of kinematic stability analysis in determining rational design parameters of career steps. Series of Geology and Technical Sciences, 445(1), 135-143. https://doi.org/10.32014/2021.2518-170X.19.

12. Zhang, X., Wang, L., Krabbenhoft, K., & Tinti, S. (2020). A case study and implication: particle finite element modelling of the 2010 Saint-Jude sensitive clay landslide. Landslides, 17(5), 1117-1127. https://doi.org/10.1007/s10346-019-01330-4.

13. Nizametdinov, N.F., Nizametdinova, R.F., Nagibin, A.A., & Estaeva, A.R. (2020). Slope Stability in Open Pit Mines in Clayey Rock Mass. Journal of Mining Science, 56(2), 196-202. https://doi.org/10.1134/S1062739120026649.

14. Doumbouya, L., Guan, C.S., & Bowa, V.M. (2020). Influence of Rainfall Patterns on the Slope Stability of the Lumwana (the Malundwe) Open Pit. Geotechnical and Geological Engineering, 38(2), 1337-1346. https://doi.org/10.1007/s10706-019-01094-7.

15. Xiangfeng L., Ziyu G., Laigui W., & Han, G. (2021). Analysis on the slope stability of Fushun West Open-pit Mine under superimposed action of rainfall, mine and earthquake. The Chinese Journal of Geological Hazard and Control, 32(4). https://doi.org/https://doi.org/10.16031/j.cnki.issn.1003-8035.2021.04-06.

16. Zhang, F., Yang, T., Li, L., Bu, J., Wang, T., & Xiao, P. (2021). Assessment of the rock slope stability of Fushun West Open-pit Mine. Arabian Journal of Geosciences, 14(15), 1459. https://doi.org/10.1007/s12517-021-07815-8.

17. Karrech, A., Dong, X., Elchalakani, M., Basarir, H., Shahin,M.A., & Regenauer-Lieb, K. (2022). Limit analysis for the seismic stability of three-dimensional rock slopes using the generalized Hoek-Brown criterion. International Journal of Mining Science and Technology, 32(2), 237-245. https://doi.org/10.1016/j.ijmst.2021.10.005.

18. Gao, L., Li, T., Liu, X., Qi, H., Fan, S., Lin, C., & Zhou, M. (2021). A novel dynamic stability analysis method for jointed rock slopes based on block-interface interaction. Computers and Geotechnics,134,104113. https://doi.org/10.1016/j.compgeo.2021.104113.

19. Obregon, C., & Mitri, H. (2019). Probabilistic approach for open pit bench slope stability analysis A mine case study. International Journal of Mining Science and Technology, 29(4), 629-640. https://doi.org/10.1016/j.ijmst.2019.06.017.

20. Moldabayev, S.K., Kuzmenko, S.V., Kalyuzhnyi, Y.S., Adamchuk, A.A., & Shustov, A.A. (2020). Transport installation for the completion of contour reserves under the pillars of railway tracks (Patent No. 34721).

 

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ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

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