Development of placer deposits in the North using highwall mining systems
- I.I. Kovlekov
M.K. Ammosov North-Eastern Federal University, Yakutsk, Russian Federation
Russian Mining Industry №5 / 2021 р. 84-89
Abstract: The article studies various aspects of the highwall mining systems applicability for the development of productive sands in terms of the occurrence conditions as well as the mining and technical parameters of placer deposits. The harsh climatic conditions of the Arctic zone and the specific properties of frozen sands impose additional requirements on the operation of the mining complex. Positive and negative aspects of the practical application of mining complexes been analysed with reference to the development of precious metals and gemstones deposits. The most promising mining sites have been identified, where the use of highwall mining systems is technologically and economically feasible. Commercial mining of reserves in the boundary zones in high walls of depleted fields and in thin unconventional seams will substantially expand the mineral resource base of mining companies. A promising trend of this technology development is discussed that includes backfilling of the mined-out space in order to reduce the loss of mineral resources. The ice-rock mixture is proposed as the backfill material, which significantly reduces the unit cost of these operations. A practical case of this technology implementation is described for the development of substandard sands of a placer deposit in the Far North conditions. The possibility of developing the reserves of tin placer deposits on the Arctic shelf using the highwall mining systems has been identified as the most promising direction of scientific and practical research for the development of the mining industry in the region.
Keywords: highwall mining system, placer deposit, arctic shelf placers, frozen backfill, Far North, Yakutia
For citation: Kovlekov I.I. Development of placer deposits in the North using highwall mining systems. Gornaya promyshlennost = Russian Mining Industry. 2021;(5):84–89. (In Russ.) DOI: 10.30686/1609-9192-2021-5-84-89.
Article info
Received: 27.08.2021
Revised: 17.09.2021
Accepted: 21.09.2021
Information about the author
Ivan I. Kovlekov – Doctor of Engineering Sciences, Professor of Mining Department, Mining Institute, M.K. Ammosov NorthEastern Federal University, Yakutsk, Russian Federation
References
1. Gerike B.L., Drozdenko Yu.V., Kopytin D. V. Complexes of deep seam mining: review of application and study of their technical condition. Journal of Mining and Geotechnical Engineering. 2020;(3):58–78. (In Russ.) https://doi.org/10.26730/2618-7434-2020-3-58-78
2. Mo S., Zhang C., Canbulat I., Hagan P. A Review of highwall mining experience and practice. In: Proceedings of the 2016 Coal Operaters’ Conference, Mining Engineering, University of Wollongong, February 10–12, 2016, pp. 522–530 Available at: https://ro.uow.edu.au/coal/638/
3. Sasaoka T., Karian T., Hamanaka A., Shimada H, Matsui K. Application of highwall mining system in weak geological condition. International Journal of Coal Science & Technology. 2016;3(3):311–321. https://doi.org/10.1007/s40789-016-0121-6
4. Fan M. Design Programs for Highwall Mining Operations. In: Yi Luo (ed.) Graduate Theses, Dissertations, and Problem Reports. Statler; 2015. 5572. Available at: https://researchrepository.wvu.edu/etd/5572
5. Grigoryan A.A., Galeev R.R., Kaplan A.V., Lapaev V.N. Development of mining technology for low grade reserves of coal. Ratsionalnoe osvoenie nedr = Mineral Mining & Conservation. 2014;(4):23–27. (In Russ.)
6. Hartcher P., Case G. The experience of Addcar in highwall mining operations. In: Naj Aziz, Bob Kininmonth (eds). Proceedings of the 2019 Coal Operaters’ Conference, Mining Engineering, University of Wollongong, February 2019, pp. 103–116. Available at: https://ro.uow.edu.au/cgi/viewcontent.cgi?article=2389&context=coal
7. Netsvetaev A.G., Grigoryan A.A., Pruzhina D.I. The origin, history, and state of the art of coal auger mining technology. Gornaya promyshlennost = Russian Mining Industry. 2015;(2):60–63. (In Russ.) Available at: https://mining-media.ru/ru/article/ogr/8558-tekhnologii-bezlyudnoj-dobychi-uglya-s-primeneniem-shnekoburovykh-mashin
8. Follington I.L., Deeter R., Share D., Moolman C. A new underground auger mining system. Journal of the Southern African Institute of Mining and Metallurgy. 2001;101(1):25–32. https://doi.org/10.10520/AJA0038223X_2685
9. Netsvetaev A.G., Grigoryan A.A., Pruzhina D.I. Progress of highwall miner-based unmanned coal mining technology. Gornaya promyshlennost = Russian Mining Industry. 2015;(4):87–91. (In Russ.) Available at: https://mining-media.ru/ru/article/ogr/9016-razvitietekhnologii-bezlyudnoj-ugledobychi-s-primeneniem-kompleksov-kgrp
10. Anfyorov B.A., Kuznetsova L.V. Reduction of coal losses by combined open cast and under-ground mining of periferal reserves from the pit side. Journal of T.F. Gorbachev Kuzbass State Technical University – Bulletin of the Kuzbass State Technical University. 2019;(1):78–85. (In Russ.) https://doi.org/10.26730/1999-4125-2019-1-78-85
11. Clark I., Boyd G. Highwall Mining Backfill. ACARP Project, Number C6014. October 1999. Available at: https://www.acarp.com.au/abstracts.aspx?repId=C6014
12. Sleptsov A.E. Mechanization of mining operations and roof control at placer mines in the North. Yakutsk: Yakutsk Branch of the Siberian Branch of the USSR Academy of Sciences; 1983. 152 p. (In Russ.)
13. Labutin V.N., Markov V.S. Prospects of application of combined method destruction of rocks. MIAB. Mining Inf. Anal. Bull. 2015;(12):325–332. (In Russ.) Available at: https://giab-online.ru/files/Data/2015/12/325_332_12_2015.pdf
14. Mo S., Canbulat I., Zhang C., Oh J., Shen B., Hagan P. Numerical investigation into the effect of backfilling on coal pillar strength in highwall mining. International Journal of Mining Science and Technology. 2018;28(2):281–286. https://doi.org/10.1016/j.ijmst.2017.07.003
15. Neobutov G.P., Zubkov V.P., Petrov D.N. Using backfill from freezing water-rock mixture at ore mining at the deposit Badran. MIAB. Mining Inf. Anal. Bull. 2015;(S30):163–172. (In Russ.)
16. Mikhaylov Yu.V. New subsoil use technologies towards ecological and national security of Russia. MIAB. Mining Inf. Anal. Bull. 2018;(11):92–106. (In Russ.) https://doi.org/10.25018/0236-1493-2018-11-0-92-106
17. Kovlekov I.I. A combined mining method of flat-lying beds. RF Patent No.2715503, dated 25.09.2019. 2020. Bulletin No. 7. (In Russ.)
18. Smirnov A.N., Ushakov V.I., Kryukov V.D. A reserve of the tin resource base in the shelf areas of the Russian arctic seas. Mineral Recourses of Russia. Economics and Management. 2008;(6):15–21. (In Russ.)
19. Bortnikov N.S., Lobanov K.V., Volkov A.V., Galyamov A.L., Vikent'ev I.V., Tarasov N.N., Distler V.V., Lalomov A.V., Aristov V.V., Murashov K.Y., Chizhova I.A., Chefranov R.M. Strategic metal deposits of the Arctic zone. Geology of Ore Deposits. 2015;57(6):433–453. https://doi.org/10.1134/S1075701515060021 (In Russ. https://doi.org/10.7868/S0016777015060027)
20. Lalomov A.V. Placer deposits of the Russian Arctic and ways of development. Mineralogiya = Mineralogy. 2017;3(2):30–42. (In Russ.) https://journal.mineralogy.ru/?p=4842&lang=en
