Concurrent optimization of mine block sequencing and cut-off grades

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dc.authorscopusid6506350539
dc.contributor.authorKumral M.
dc.date.accessioned2024-08-04T20:04:07Z
dc.date.available2024-08-04T20:04:07Z
dc.date.issued2011
dc.departmentİnönü Üniversitesien_US
dc.description22nd International Mining Congress and Exhibition of Turkey, IMCET 2011 -- 11 May 2011 through 13 May 2011 -- 110210en_US
dc.description.abstractMine block sequencing, ore-waste discrimination and determination of production rates are main sub-problems of mine production scheduling. The objective is to maximize net present value under access and capacity constraints. The problems are currently solved in a sequential way: First, production rates and corresponding costs are initiated. Using this cost structure, a cut-off schedule is determined. Finally, the block sequencing is executed for marginal cut-off grades and pre-defined production rates. This process is repeated until maximum net present value (NPV) is found. However, these problems should be solved simultaneously instead of iterative procedure because production rates and cut-offs cannot be known without block sequencing. In this paper, ore-waste discrimination and block sequencing are optimized concurrently through mixed integer programming (MIP) model. This procedure also considers relationship between capacities and accessibility. To observe the performance of new model, a case study is implemented. An increase in NPV is observed.en_US
dc.identifier.endpage40en_US
dc.identifier.isbn9786050101034
dc.identifier.scopus2-s2.0-84923073978en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage37en_US
dc.identifier.urihttps://hdl.handle.net/11616/92387
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherKorza Matbaaciliken_US
dc.relation.ispartofIMCET 2011 - Proceedings of the 22nd International Mining Congress of Turkeyen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectProduction controlen_US
dc.subjectSchedulingen_US
dc.subjectCapacity constraintsen_US
dc.subjectCost structureen_US
dc.subjectCut-off gradeen_US
dc.subjectMine productionen_US
dc.subjectMixed integer programming modelen_US
dc.subjectNet present valueen_US
dc.subjectProduction ratesen_US
dc.subjectSub-problemsen_US
dc.subjectInteger programmingen_US
dc.titleConcurrent optimization of mine block sequencing and cut-off gradesen_US
dc.typeConference Objecten_US

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