The impact of haulroad geometric parameters on open pit mine strip ratio

Detalhes bibliográficos
Autor(a) principal: Alegre,Douglas Alexandre Gonçalves
Data de Publicação: 2019
Outros Autores: Peroni,Rodrigo de Lemos, Aquino,Eduardo da Rosa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: REM - International Engineering Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000200025
Resumo: Abstract The 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.
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spelling The impact of haulroad geometric parameters on open pit mine strip ratiohaul road designstrip ratiooverall slope anglepit designAbstract The 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.Fundação Gorceix2019-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000200025REM - International Engineering Journal v.72 n.1 suppl.1 2019reponame:REM - International Engineering Journalinstname:Fundação Gorceix (FG)instacron:FG10.1590/0370-44672018720136info:eu-repo/semantics/openAccessAlegre,Douglas Alexandre GonçalvesPeroni,Rodrigo de LemosAquino,Eduardo da Rosaeng2019-02-05T00:00:00Zoai:scielo:S2448-167X2019000200025Revistahttps://www.rem.com.br/?lang=pt-brPRIhttps://old.scielo.br/oai/scielo-oai.php||editor@rem.com.br2448-167X2448-167Xopendoar:2019-02-05T00:00REM - International Engineering Journal - Fundação Gorceix (FG)false
dc.title.none.fl_str_mv The impact of haulroad geometric parameters on open pit mine strip ratio
title The impact of haulroad geometric parameters on open pit mine strip ratio
spellingShingle The impact of haulroad geometric parameters on open pit mine strip ratio
Alegre,Douglas Alexandre Gonçalves
haul road design
strip ratio
overall slope angle
pit design
title_short The impact of haulroad geometric parameters on open pit mine strip ratio
title_full The impact of haulroad geometric parameters on open pit mine strip ratio
title_fullStr The impact of haulroad geometric parameters on open pit mine strip ratio
title_full_unstemmed The impact of haulroad geometric parameters on open pit mine strip ratio
title_sort The impact of haulroad geometric parameters on open pit mine strip ratio
author Alegre,Douglas Alexandre Gonçalves
author_facet Alegre,Douglas Alexandre Gonçalves
Peroni,Rodrigo de Lemos
Aquino,Eduardo da Rosa
author_role author
author2 Peroni,Rodrigo de Lemos
Aquino,Eduardo da Rosa
author2_role author
author
dc.contributor.author.fl_str_mv Alegre,Douglas Alexandre Gonçalves
Peroni,Rodrigo de Lemos
Aquino,Eduardo da Rosa
dc.subject.por.fl_str_mv haul road design
strip ratio
overall slope angle
pit design
topic haul road design
strip ratio
overall slope angle
pit design
description Abstract The 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.
publishDate 2019
dc.date.none.fl_str_mv 2019-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000200025
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000200025
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0370-44672018720136
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Gorceix
publisher.none.fl_str_mv Fundação Gorceix
dc.source.none.fl_str_mv REM - International Engineering Journal v.72 n.1 suppl.1 2019
reponame:REM - International Engineering Journal
instname:Fundação Gorceix (FG)
instacron:FG
instname_str Fundação Gorceix (FG)
instacron_str FG
institution FG
reponame_str REM - International Engineering Journal
collection REM - International Engineering Journal
repository.name.fl_str_mv REM - International Engineering Journal - Fundação Gorceix (FG)
repository.mail.fl_str_mv ||editor@rem.com.br
_version_ 1754734691050586112

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