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dc.contributor.authorCâmara, Taís Renatapt_BR
dc.contributor.authorPeroni, Rodrigo de Lemospt_BR
dc.date.accessioned2017-01-14T02:24:28Zpt_BR
dc.date.issued2016pt_BR
dc.identifier.issn0370-4467pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/150844pt_BR
dc.description.abstractIn open pit mining, dilution is not always a factor systematically analyzed and calculated. Often it is only an adjusted number, for example, calculated or even empirically determined for a certain operational condition perpetuating along time in the form of a constant applied to calculating reserves or mine planning in attendance of audit requirements. Dilution and loss are factors that should be always considered for tonnage and grade estimates. These factors are always associated and can be determined considering several particularities of the deposit and the operation itself. In this study, a methodology was determined to identify blocks adjacent to the blocks previously planned to be mined. Thus, it is possible to estimate the dilution caused by poor operating efficiency, taking into account the inability of the equipment to perfectly remove each block, respecting its limits. Mining dilution is defined as the incorporation of waste material to ore due to the operational incapacity to efficiently separate the materials during the mining process, considering the physical processes, and the operating and geometric configurations of the mining with the equipment available.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofRem: revista Escola de Minas. Ouro Preto, MG. Vol. 69, no. 4 (Oct./Dec. 2016), p. 491-496pt_BR
dc.rightsOpen Accessen
dc.subjectLavra a céu abertopt_BR
dc.subjectDilutionen
dc.subjectLavra : Planejamentopt_BR
dc.subjectMine planningen
dc.subjectEfficiencyen
dc.subjectEficiênciapt_BR
dc.titleQuantifying dilution caused by execution efficiencypt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001010280pt_BR
dc.type.originNacionalpt_BR


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