Approbation of the technology of efficient application of excavator-automobile com-plexes in the deep open mines

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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.

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.

A. A. Toktarov, orcid.org/0000-0003-2578-8642, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Ye. Aben, orcid.org/0000-0003-3909-3200, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O. O. Shustov, orcid.org/0000-0002-2738-9891, Dnipro University of Technology, Dnipro, Ukraine, e‑mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2020, (4): 030-038

https://doi.org/10.33271/nvngu/2020-4/030

повний текст / full article

 

Abstract:

Purpose. To establish the feasibility of implementing the technology for working out the overburden rock ledges and ore mining by transverse panels in steeply sloped layers within a single open mine until the end of its operation.

Methodology. In substantiating the spatial position of the staged contours of steeply sloped layers in round-shaped open mine fields and their optimization, the following methods were used: Bellman’s analytical and optimal control methods in dynamic programming in combination with an integrated mining and geological information complex basing on a digital model of an iron ore field. To study the reserves of increasing the productivity of excavator-car complexes, when switching to the technology of working out pit banks with transverse panels in steeply inclined layers from top to bottom with a shift of the open pit spacing, methods of correlation and regression analysis were used.

Findings. Based on the distinction between the concepts of the near-contour and deep zones of deep open mines and the introduction of two new parameters for the relationship between the contours of the ore field and the dynamics of the open mine formation, a method of justification of the spatial position of the staged contours of steeply sloped layers in round-shaped open mine fields has been developed. Compared to the dead-end turn of automotive dumping trucks according to the used technology for working out ledges with longitudinal panels, the transition to working them out with transverse panels with a width of 60–80 m, with a loop turn of the automotive dumping trucks for loading will increase the productivity of excavators at least by 25–30 %, which, along with a decrease in the spacing of the open mine sides, compensates the intensity of the ore field overburden from top to bottom within the boundaries of steeply sloped layers even with a significant lag of overburden operations.

Originality. The transition to the technology of working out ledges with transverse panels in steeply sloped layers is the only solution if the overburden lag exceeds the current design overburden volumes when mining approaches the limit contour of the open mine surface. In the studied extremely deep iron ore open mine, even when the design volume of the current (annual) overburden operations increases by more than 3 times, this technology allowed reducing the overburden lag by 25 % and shortening the period for the development of the ore production capacity from 8 to 5 years. A mathematical model has been created to optimize the contours of working out stages for steeply sloped fields when working out ledges with transverse panels in steeply sloped layers, in which the functional contains the fourth-order non-linearity in relation to the required value – the width of the panels. Automation of calculations for optimizing the parameters of the design of the working open mine sides in the dynamics of the development of mining operations with such a formulation of the task by non-linear programming method is provided by splitting it into two successively solved optimization tasks by the dynamic programming method on the basis of Bellman’s optimality principle.

Practical value. The staged contours of steeply sloped layers, constructed using the method of substantiating the spatial position, for an existing iron ore open mine, after optimization of steep sides using Bellman’s optimal control method, will enable one to obtain a real mining operation schedule when implementing the technology for working out ledges for rock overburden and ore mining with transverse panels in steeply sloped layers within a single open mine. It is established that despite the increase in the volume of rock mass in the worked out panel from top to bottom, it is possible to level significantly the volumes of lag of the overburden operations and to shorten the period of the development of production capacity for a strategic iron ore mining facility. Analysis of the mining operation schedule shows that the greatest difficulties arise in the first three years – 2020–2022. The current overburden ratio at mining of 15 million tons of ore will vary from 8.9 to 8.7 tons/ton. However, taking into account the existing overburden lag place, it can be reduced by almost 25 %. A two-fold decrease in rock overburden volumes in 2023 will increase the ore mining by 30 % to 19.5 million tons, and in 2024, by 60 %, respectively, and develop a design capacity of 24 million tons.

References.

1. Gumenik, I., Lozhnikov, A., & Maevskiy, A. (2012). Methodological principles of negative opencast mining influence increasing due to steady development. Geomechanical Processes During Underground Mining, 45-49. https://doi.org/10.1201/b13157-9.

2. 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, 00016. https://doi.org/10.1051/e3sconf/20186000016.

3. Halatchev, R. (2013). Owner-operator versus contractor production scheduling – a vision for the effective exploitation of Australian gold resources by surface mining. World gold conference in Brisbane, QLD. Retrieved from https://old.ausimm.com.au/worldgold2013/docs/worldgold2013_registration_brochure.pdf.

4. Afrapoli, A. M., & Askari-Nasab, H. (2019). Mining fleet management systems: a review of models and algorithms. International journal of mining reclamation and environment, (33), 42-60. https://doi.org/10.1080/17480930.2017.1336607.

5. Elahizeyni, E., Kakaie, R., & Yousefi, A. (2011). A new algorithm for optimum open pit design: Floating cone method III. Journal of Mining & Environment, 2/2, 118-125.

6. Moniri-Morad, A., Pourgol-Mohammad, M., Aghababaei, H., & Sattarvand, J. (2019). Capacity-based performance measurements for loading equipment in open pit mines. Journal of central south university, (26), 1672-1686. https://doi.org/10.1007/s11771-019-4124-5.

7. Morales, N., & Reyes, P. (2016). Increasing the value and feasibility of open pit plans by integrating the mining system into the planning process. Journal of the Southern African Institute of Mining and Metallurgy, 116(7), 663-672. https://doi.org/10.17159/2411-9717/2016/v116n7a8.

8. Saavedra-Rosas, J., Jelvez, E., Amaya, J., & Morales, N. (2016). Optimizing open-pit block scheduling with exposed ore reserve. Journal of the Southern African Institute of Mining and Metallurgy, 116(7), 655-662. https://doi.org/10.17159/2411-9717/2016/v116n7a7.

9. Samavati, M., Essam, D., Nehring, M., & Sarker, R. (2017). A local branching heuristic for the open pit mine production scheduling problem. European Journal of Operational Research, 257(1), 261-271. https://doi.org/10.1016/j.ejor.2016.07.004.

10. Daduna, H., Krenzler, R., Ritter, R., & Stoyan, D. (2016). Heuristic approximation and computational algorithms for closed networks: A case study in open-pit mining. 2nd European Conference on Queueing Theory (ECQT), (119), 5-26. https://doi.org/10.1016/j.peva.2017.12.002.

11. Paricheh, M., & Osanloo, M. (2019). Concurrent open-pit mine production and in-pit crushing-conveying system planning. Engineering optimization. https://doi.org/10.1080/0305215X.2019.1678150.

12. Chaowasakoo, P., Seppala, H., Koivo, H., & Zhou, Q. (2017). Improving fleet management in mines: The benefit of heterogeneous match factor. European journal of operational research, (3), 1052-1065. https://doi.org/10.1016/j.ejor.2017.02.039.

13. Chaowasakoo, P., Seppala, H., & Koivo, H. (2018). Age-based maintenance for a fleet of haul trucks. Journal of quality in maintenance engineering, (4), 511-528. https://doi.org/10.1108/JQME-03-2017-0016.

14. Dabbagh, A., & Bagherpour, R. (2019). Development of a Match Factor and Comparison of Its Applicability with Ant-Colony Algorithm in a Heterogeneous Transportation Fleet in an Open-Pit Mine. Journal of Mining Science, (55), 45–56. https://doi.org/10.1134/S1062739119015287.

15. Adams, K. K., & Bansah, K. J. (2016). Review of Operational Delays in Shovel-Truck System of Surface Mining Operations. 4 th UMaT Biennial International Mining and Mineral Conference, 60-65. Retrieved from https://www.researchgate.net/publication/306060370_Review_of_Operational_Delaysin_ShovelTruck_System_of_Surface_Mining_Operations.

16. Abbaspour, H., Drebenstedt, C., & Dindarloo, S. R. (2018). Evaluation of safety and social indexes in the selection of transportation system alternatives (Truck-Shovel and IPCCs) in open pit mines. Safety science, (108), 1-12. https://doi.org/10.1016/j.ssci.2018.04.020.

17. Kuzmenko, S. V., Kaluzhnyi, Ye. S., Moldabayev, S. K., Shustov, O. O., Adamchuk, A. A., & Toktarov, A. A. (2019). Optimization of the position of the complexes of cyclic-flow technology in the refinement of deep iron ore quarries. Mining of Mineral Deposits, 13(3), 104-112. https://doi.org/10.33271/mining13.03.104.

18. Kalybekov, T., Rysbekov, K. B., Sandibekov, M. N., Zha­kyp­bek, Y., & Begymzhanova, Y. Y. (2020). The study of rational technology of reclamation of the mine-out quarry space. Journal of Advanced Research in Natural Sience, 9, 63-70. https://doi.org/10.26160/2572-4347-2020-9-63-70.

19. Moldabayev, S., Rysbaiuly, B., & Sultanbekova, Zh. (2013). Justification outlines steps mining steep deposits solution of the nonlinear programming. Mining of Mineral Deposits, 7, 241-246.

20. Moldabayev, S., Rysbaiuly, B., Sultanbekova, Zh., & Sarybayev, N. (2019). Methodological approach to creation of the 3D model of an oval-shaped open pit mine. E3S Web of Conferences, (123), 00013. https://doi.org/10.1051/e3sconf/201912301049.

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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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