Mostrar el registro sencillo del ítem

dc.contributor.authorAlegre, Douglas Alexandre Gonçalvespt_BR
dc.contributor.authorPeroni, Rodrigo de Lemospt_BR
dc.contributor.authorAquino, Eduardo da Rosapt_BR
dc.date.accessioned2020-01-16T04:09:17Zpt_BR
dc.date.issued2019pt_BR
dc.identifier.issn2448-167Xpt_BR
dc.identifier.urihttp://hdl.handle.net/10183/204352pt_BR
dc.description.abstractThe aim of the study was to analyze the impact on the strip ratio (SR) through varying haul road geometric parameters in two types of deposits, namely one with a steeper dip and a second one with a more equidimensional horizontal behavior. The SRs and the overall slope angle were compared with a base scenario, where the results show an increase in the SR when: (a) the width of the haul roads was increased; (b) the longitudinal grade of the road was decreased; and (c) switchbacks were added. The increase in the longitudinal grade of 2% was considered the best-case scenario, resulting in 1.08% decrease in the SR for the horizontal deposit and in a 4.15% decrease for the vertical one. It was also noticed that the SR variations are inversely proportional to the overall slope angle variations, illustrating the important role that the geometric design of the haul roads has in the return on capital.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofREM : international engineering journal. Ouro Preto, MG. Vol. 72, no. 1 (Jan./Mar. 2019), p. 25-31pt_BR
dc.rightsOpen Accessen
dc.subjectHaul road designen
dc.subjectMineração a céu abertopt_BR
dc.subjectStrip ratioen
dc.subjectOverall slope angleen
dc.subjectPit designen
dc.titleThe impact of haul road geometric parameters on open pit mine strip ratiopt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001106444pt_BR
dc.type.originNacionalpt_BR


Ficheros en el ítem

Thumbnail
   

Este ítem está licenciado en la Creative Commons License

Mostrar el registro sencillo del ítem