Comparison between the application of the conventional mine planning and of the direct block scheduling on an open pit mine project.

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dc.contributor.authorCampos, Pedro Henrique Alves
dc.contributor.authorCabral, Ivo Eyer
dc.contributor.authorArroyo Ortiz, Carlos Enrique
dc.contributor.authorMorales, Nelson
dc.date.accessioned2019-05-10T12:42:46Z
dc.date.available2019-05-10T12:42:46Z
dc.date.issued2018
dc.description.abstractHistorically, since the 60's, traditional mine planning consists of several distinct stages: 1) Definition of the ultimate pit - the portion of the blocks that results in the greatest total value; 2) Pushback selection - based on the generation of nested pits, obtained with the change in the value of the ore price; 3) Long-term production scheduling. Although considered quite satisfactory, this methodology presents some flaws: The stages, even if considered individually optimal, may not be when put together. The opportunity cost is not considered and the cut-off is fixed. Due to the recent computational advances, a new technique has been growing and is more reliable: the direct block sequencing. In this methodology, the steps are consolidated into only one process, improving the economic results, reducing the total execution time and obtaining, in fact, an optimal planning. The aim of this work is to compare the results of the two planning methods applied in a database of a Brazilian iron ore mine and to show the real advantages and disadvantages of each one. To solve the direct block sequencing technique, Doppler was used, a tool developed by Delphos Mine Planning Laboratory, located at the University of Chile. The traditional methodology was executed through Whittle software. Lastly, a medium-term scheduling was performed using Deswik software.pt_BR
dc.identifier.citationCAMPOS, P. H. A. et al. Comparison between the application of the conventional mine planning and of the direct block scheduling on an open pit mine project. REM - International Engineering Journal, v. 71, p. 269-274, 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2018000200269>. Acesso em: 12 fev. 2019.pt_BR
dc.identifier.doihttp://dx.doi.org/10.1590/0370-44672017710037pt_BR
dc.identifier.issn1807-0353
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/11265
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseA REM - International Engineering Journal - autoriza o depósito de cópia de artigos dos professores e alunos da UFOP no Repositório Institucional da UFOP. Licença concedida mediante preenchimento de formulário online em 12 set. 2013.pt_BR
dc.subjectProduction schedulingpt_BR
dc.titleComparison between the application of the conventional mine planning and of the direct block scheduling on an open pit mine project.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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