Selecting a variant to allocate a plant producing shotcrete while implementing method of “wet” pneumatic concrete placing in Orlovskaia mine
L. Krupnik1, Yu. Shaposhnik2, S. Shaposhnik3, A. Konurin2, D. Shokarev4
1Kazakh National Research Technical University named after K.I. Satpayev, Almaty, Kazakhstan
2N.A. Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
3D. Serikbaev East-Kazakhstan State Technical University, Ust-Kamenogorsk, Kazakhstan
4LLP “Expert PRO”, Ust-Kamenogorsk, Kazakhstan
Min. miner. depos. 2019, 13(3):87-95
https://doi.org/10.33271/mining13.03.087
Full text (PDF)
ABSTRACT
Purpose. Mining and geological conditions are complicated due to the decreased level of mining within deposits of West Kazakhstan. It results in significant increase in the amount of metal framed support which cannot always provide safety of mine workings. The problem may be solved by transition from heavy and labour-intensive in mounting metal special shape framed supports to the cheaper and more easily erected reinforced shotcrete with reinforced frames. “Dry” method of shotcrete application, used currently in Orlovskaia mine, can provide neither high quality nor the required amounts of pneumatic concrete placing; in this context, “wet” method makes it possible to support rock mass at a high mechanization level, and development of premium durable pavement. Thus, in the context of Orlovskaia mine it is required to solve the problems concerning selection of efficient schemes to deliver shotcrete mixtures or their components and to determine optimum location for a plant, producing shotcrete from the viewpoint of minimization of expenditures connected with shotcrete support.
Methods. Calculations, determining the required shotcrete amounts to support mine workings, technological capacity of a plant to produce shotcrete as well as self-propelled mixers, have been performed. Basic production facilities for shotcrete operations have been selected. Three variants to allocate a plant for shotcrete manufacturing within Orlovskaia mine have been considered. The discounted net cash flows have been compared ignoring sales of the finished product of Orlovskaia mine in terms of the available and the proposed methods to support mine workings for the period of 2016 – 2025.
Findings. Relying upon laboratory tests, carried out in Kazzink LLP as well as BASF and Normet Companies, efficient compositions of shotcrete mixtures, providing preparation of shotcrete mixture of the required quality in terms of minimal binder consumption have been identified. It has been recommended to use 3.5 m3 mining machine UnimecMF500 Transmixer by Normet Company as a mixture to deliver shotcrete; self-propelled equipment MeycoME-3 (theoretical output is up to 20 m3/h) by AtlasCоpcо Company has been proposed to apply “wet” shotcrete. Use of underground 15 m3/h mobile plant on stands or on trailer of Normet Company has been substantiated to be mounted in a small-cross chamber with cement bulk storage or in big bags. Schemes to allocate concrete mixing plant have been developed for specific conditions of Orlovskaia mine.
Originality. Specific features of potential variants to allocate a plant, producing shotcrete to support mine workings in terms of Orlovskaia mine, have been identified from technological and economic viewpoints.
Practical implications. Economic expediency of a process line intended to support mine workings in Orlovskaia mine using a “wet” shotcrete has been developed and substantiated.
Keywords: shotcreting, support of a mine working, transportation schemes, economic efficiency
REFERENCES
Azel’khanov, A.Zh., Alibaev, Zh.O., Zateeva, S.M., & Alibaev, A.O. (2012). Tekhnologiya zakladochnykh rabot na rudnike “Suzdal’skiy”. Gornyy Zhurnal Kazakhstana, (7), 24-26.
Balg, C., Roduner, A., & Geobrugg, A. (2013). Ground support applications. In International Ground Support Conference (pp. 1-6). Krakow, Poland: AGH University.
Barton, N. (2002). Some new Q-value correlations to assist in site characterisation and tunnel design. International Journal of Rock Mechanics and Mining Sciences, 39(2), 185-216.
https://doi.org/10.1016/s1365-1609(02)00011-4
Galaov, R.B., Nagovitsin, Yu.N., Pliev, B.Z., Andreev, A.A., & Vil’chinskiy, V.B. (2014). Sovershenstvovanie sposobov krepleniya vyrabotok na rudnikakh ZF OAO “GMK “Noril’skiy nikel’”. Gornyy Zhurnal, (4), 25-28.
Instruktsiya po vyboru tipa i parametrov krepi gornykh vyrabotok v usloviyakh Orlovskogo rudnika. (2012). Ust’-Kamenogorsk, Kazakhstan: PO “Vostoktsvetmet”.
Kalmykov, V.N., Volkov, P.V., Zubkov, A.A., Krasavin, A.V., & Mikhaylova, G.V. (2015). Otsenka effektivnosti primeneniya mekhanizirovannykh kompleksov mokrogo nabryzgbetonirovaniya v usloviyakh stroitel’stva glubokikh gorizontov Gayskogo podzemnogo rudnika. Vestnik Nauki i Obrazovaniya Severo-Zapada Rossii, (3), 1-8.
Krupnik, L.А., Shaposhnik, Y.N., & Shaposhnik, S.N. (2017). Experience in introduction of technology of filling of the domes with saponific resins at the mines of TOO Vostoktsvetmet. Occupational Safety in Industry, (7), 38-42.
https://doi.org/10.24000/0409-2961-2017-7-38-42
Manin, Yu.A., & Mel’nikov, A.E. (2018). Smesi MBV i opyt ikh primeneniya pri kreplenii podzemnykh gornykh vyrabotok. Innovatsionnye Geotekhnologii pri Razrabotke Rudnykh i Nerudnykh Mestorozhdeniy, 26-33.
ONTP 1-86. (1986). Normy tekhnologicheskogo proektirovaniya podzemnogo transporta gornodobyvayushchikh predpriyatiy. Moskva, Rossiya: Minuglepromom SSSR.
Pravila tekhnicheskoy ekspluatatsii rudnikov, priiskov i shakht, razrabatyvayushchikh mestorozhdeniya tsvetnykh redkikh i dragotsennykh metallov. (1981). Moskva, Rossiya: Nedra.
Proekt organizatsii rabot po torkretirovaniyu gornykh vyrabotok. (2015). Zhezkent, Kazakhstan: Orlovskiy proizvodstvennyy kompleks.
RDS 82-202-96. (1996). Pravila razrabotki i primeneniya normativov trudnoustranimykh poter’ i otkhodov mate-rialov v stroitel’stve. Moskva, Rossiya: Minstroy Rossii.
Shaposhnik, Y., Konurin, A., Neverov, S., Neverov, A., & Shaposhnik, S. (2016). Justification of mine working supports in terms of the rating classification of Norwegian geotechnical institute. 16th International Multidisciplinary Scientific GeoConference SGEM2016, Science and Technologies in Geology, Exploration and Mining, (2), 519-526.
https://doi.org/10.5593/sgem2016/b12/s03.068
Shaposhnik, Yu.N., Konurin, A.I., & Shokarev, D.A. (2018). Razrabotka tekhnologii krepleniya gornykh vyrabotok v usloviyakh intensivnogo okisleniya sul’fidnykh rud na Orlovskom mestorozhdenii. Vestnik RUDN. Seriya: Inzhenernye Issledovaniya, 19(2), 235-245.
ST TOO 050140000656-01-33.1. (2011a). Kreplenie gornykh vyrabotok na rudnikakh TOO “Korporatsiya Kazakhmys”. Almaty, Kazakhstan: TOO “Korporatsiya Kazakhmys”.
ST TOO 050140000656-01-33.1. (2011b). Vybor sostava torkretbetona. Tekhnologicheskiy reglament. Almaty, Kazakhstan: TOO “Korporatsiya Kazakhmys”.
Tekhnologicheskiy reglament (instruktsiya) po vyboru tipov, parametrov krepi i tekhnologii ikh vozvedeniya na Orlovskom mestorozhdenii. (2016). Ust’-Kamenogorsk, Kazakhstan: TOO “Vostoktsvetmet”.
Uskov, V.A., Kondrat’yev, S.A., & Neverov, S.A. (2017). Ob ekonomicheskoy tselesoobraznosti otrabotki zapadnogo flanga medistykh rud Oktyabr’skogo mestorozhdeniya s porodnoy zakladkoy vtorichnykh kamer. Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, (6), 133-139.
Volkov, V.M., Ginatulin, A.M., Sakharov, I.T., & Chekalova, K.A. (1972). Orlovskoe rudnoe pole na Rudnom Altae. Alma-Ata, Kazakhstan: Nauka KazSSR.
VSN 126-90. (1991). Normy proektirovaniya i proizvodstva rabot nabryzgbetonom i ankerami pri stroitel’stve transportnykh tonneley i metropolitenov. Moskva, Rossiya: Mintransstroy SSSR.
Zhirnov, A.A., Abdrakhmanov, S.U., Shaposhnik, Yu.N., & Konurin, A.I. (2018). Otsenka ustoychivosti massiva gornykh porod i vybor tipa i parametrov krepleniya vyrabotok na Orlovskom polimetallicheskom mestorozhdenii. Gornyy Zhurnal, (3), 51-57
