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Draw point behavior in LKAB’s SLC mines
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-5347-0853
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Luossavaara Kiirunavaara AB, Malmberget, Sweden.
2019 (English)In: Rock Mechanics for Natural Resources and Infrastructure Development - Full Papers: Proceedings of the 14th International Congress on Rock Mechanics and Rock Engineering (ISRM 2019), September 13-18, 2019, Foz do Iguassu, Brazil / [ed] Sergio A.B. da Fontoura; Ricardo Jose Rocca; José Pavón Mendoza, Taylor & Francis, 2019, p. 211-218Conference paper, Published paper (Refereed)
Abstract [en]

In a sublevel caving mine, the ore recovery, side rock dilution and the total ore extraction rate are determined and controlled at the draw point. The decision to stop loading at a drawpoint and continue blasting the next fan is critical. Abandonment of the draw point too early leads to ore losses and inefficient use of ore resources. On the other hand, closing a draw point too late leads to increased side rock dilution and increased production costs. The purpose of this paper is to evaluate the used technique for draw control and the potential for increasing the loading level efficiency using available data sources as well as other types of information from the Luossavaara Kiirunavaara AB (LKAB) mines.

Place, publisher, year, edition, pages
Taylor & Francis, 2019. p. 211-218
Series
Proceedings in Earth and geosciences, ISSN 2639-7749, E-ISSN 2639-7757 ; 6
National Category
Mineral and Mine Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-77536Scopus ID: 2-s2.0-85084661092OAI: oai:DiVA.org:ltu-77536DiVA, id: diva2:1388915
Conference
14th International Congress on Rock Mechanics and Rock Engineering (ISRM 2019), Foz do Iguassu, Brazil, September 13-18, 2019
Note

ISBN för värdpublikation: 978-0-367-42284-4, 978-0-367-82317-7

Available from: 2020-01-28 Created: 2020-01-28 Last updated: 2021-08-03Bibliographically approved

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Gustafson, AnnaSchunnesson, Håkan

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