Incorporating geo-metallurgical information into mine production scheduling

Basit Öğe Kaydı
dc.contributor.authorKumral, M.
dc.date.accessioned2024-08-04T20:32:40Z
dc.date.available2024-08-04T20:32:40Z
dc.date.issued2011
dc.departmentİnönü Üniversitesien_US
dc.description.abstractEconomic characterization ofmining parcels depends upon geo-metallurgical properties, which vary throughout orebody. Mine production scheduling should aim to obtain maximum utility from orebody in such a way as to ensure mine-mill reconciliation. As heterogeneity of geo-metallurgical variables increases, the scheduling will be a very complicated task. Geo-metallurgical and financial data used in the mine production scheduling are based on simulation and/or estimation generated from sparse drilling and unknown future events. Therefore, the scheduling process involves a significant degree of uncertainty. In order to deal with the uncertainty stemmed from geo-metallurgical and financial variables, two approaches are recommended in this paper. Firstly, mine production scheduling is formulated as a problem of stochastic programming with recourse. The extraction periods of mining blocks are treated as the first-stage variables and the block destinations represents a recourse vector. It is observed that the solution is implicitly robust. Secondly, the scheduling is expressed as a maximin problem to extract more uniform metal quantity in periods to coincide with mill requirements instead of maximization of net present value because the blending constraint in the traditional approach forces more uniform production. In the case where there is correlation between grade and geo-metallurgical variables, this model generates reasonably good results. Journal of the Operational Research Society (2011) 62, 60-68. doi:10.1057/jors.2009.174 Published online 10 February 2010en_US
dc.identifier.doi10.1057/jors.2009.174
dc.identifier.endpage68en_US
dc.identifier.issn0160-5682
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-78649924917en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage60en_US
dc.identifier.urihttps://doi.org/10.1057/jors.2009.174
dc.identifier.urihttps://hdl.handle.net/11616/95208
dc.identifier.volume62en_US
dc.identifier.wosWOS:000285048700008en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPalgrave Macmillan Ltden_US
dc.relation.ispartofJournal of The Operational Research Societyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectgeo-metallurgical variablesen_US
dc.subjectuncertaintyen_US
dc.subjectstochastic programming with recourseen_US
dc.subjectmine production schedulingen_US
dc.subjectmaximin problemen_US
dc.titleIncorporating geo-metallurgical information into mine production schedulingen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu