Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/218174 |
Resumo: | Operational dilution in open-pit mining can influence short-term mine planning and affect the adherence between designed and executed plans, impacting the reconciliation results. This type of dilution may occur due to several reasons, such as erroneous assumptions regarding contacts, inefficient mining performance and uncertainties associated with the planned grades. The use of uncertainties enables better predictability and achievement of planned targets. Using the mine planning polygons and grade models, a methodology is proposed to measure the dilution ranges in each region. The methodology considers the uncertainty associated with the ore grades to verify the probability of occurrence of dilution in the short-term mine plan. The results demonstrated that the use of uncertainties enabled identification of the areas with a higher potential of incurring operational dilution. Using this information, the plans can be adjusted to minimize dilution, or the result can be used as a factor to correct the planned data. |
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Câmara, Taís RenataLeal, Ronald SchefferPeroni, Rodrigo de Lemos2021-02-24T04:17:55Z20200012-7353http://hdl.handle.net/10183/218174001121249Operational dilution in open-pit mining can influence short-term mine planning and affect the adherence between designed and executed plans, impacting the reconciliation results. This type of dilution may occur due to several reasons, such as erroneous assumptions regarding contacts, inefficient mining performance and uncertainties associated with the planned grades. The use of uncertainties enables better predictability and achievement of planned targets. Using the mine planning polygons and grade models, a methodology is proposed to measure the dilution ranges in each region. The methodology considers the uncertainty associated with the ore grades to verify the probability of occurrence of dilution in the short-term mine plan. The results demonstrated that the use of uncertainties enabled identification of the areas with a higher potential of incurring operational dilution. Using this information, the plans can be adjusted to minimize dilution, or the result can be used as a factor to correct the planned data.La dilución operativa en la minería en rajo puede afectar la adherencia entre los planes diseñados y ejecutados, lo que afecta los resultados de la reconciliación. Este tipo de dilución puede ocurrir debido a suposiciones erróneas con respecto a los contactos, desempeño minero ineficiente e incertidumbres asociadas con las leyes planificadas. Utilizando los polígonos de planificación y los modelos de bloques, se propone una metodología para medir los rangos de dilución en cada región. La metodología considera la incertidumbre asociada con las leyes de mineral para verificar la probabilidad de ocurrencia de dilución en el plan de mina a corto plazo. Los resultados demostraron que el uso de incertidumbres permitió la identificación de las áreas con un mayor potencial de incurrir en una dilución operativa. Con esta información, los planes pueden ajustarse para minimizar la dilución, o el resultado puede usarse como un factor para corregir los datos planificados.application/pdfengDyna : revista de la Facultad de Minas. Medelim, Colômbia. Vol. 87, no. 213 (Apr./Jun.), p. 178-183Mineração a céu abertoDiluição do minérioOperational dilutionShort-term planningUncertaintiesDilución operativaPlanificación corto plazoIncertidumbresAccounting for operational dilution by incorporating geological uncertainties in short-term mine planningConsideración de la dilución operativa incorporando incertidumbres geológicas en la planificación minera a corto plazo Estrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001121249.pdf.txt001121249.pdf.txtExtracted Texttext/plain28852http://www.lume.ufrgs.br/bitstream/10183/218174/2/001121249.pdf.txtf4dce9c253ebaec2d556ee069c6088ecMD52ORIGINAL001121249.pdfTexto completo (inglês)application/pdf2480173http://www.lume.ufrgs.br/bitstream/10183/218174/1/001121249.pdf46f040bb46de92538d163093a3ff1500MD5110183/2181742021-03-09 04:46:45.593925oai:www.lume.ufrgs.br:10183/218174Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-03-09T07:46:45Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning |
dc.title.alternative.es.fl_str_mv |
Consideración de la dilución operativa incorporando incertidumbres geológicas en la planificación minera a corto plazo |
title |
Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning |
spellingShingle |
Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning Câmara, Taís Renata Mineração a céu aberto Diluição do minério Operational dilution Short-term planning Uncertainties Dilución operativa Planificación corto plazo Incertidumbres |
title_short |
Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning |
title_full |
Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning |
title_fullStr |
Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning |
title_full_unstemmed |
Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning |
title_sort |
Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning |
author |
Câmara, Taís Renata |
author_facet |
Câmara, Taís Renata Leal, Ronald Scheffer Peroni, Rodrigo de Lemos |
author_role |
author |
author2 |
Leal, Ronald Scheffer Peroni, Rodrigo de Lemos |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Câmara, Taís Renata Leal, Ronald Scheffer Peroni, Rodrigo de Lemos |
dc.subject.por.fl_str_mv |
Mineração a céu aberto Diluição do minério |
topic |
Mineração a céu aberto Diluição do minério Operational dilution Short-term planning Uncertainties Dilución operativa Planificación corto plazo Incertidumbres |
dc.subject.eng.fl_str_mv |
Operational dilution Short-term planning Uncertainties |
dc.subject.spa.fl_str_mv |
Dilución operativa Planificación corto plazo Incertidumbres |
description |
Operational dilution in open-pit mining can influence short-term mine planning and affect the adherence between designed and executed plans, impacting the reconciliation results. This type of dilution may occur due to several reasons, such as erroneous assumptions regarding contacts, inefficient mining performance and uncertainties associated with the planned grades. The use of uncertainties enables better predictability and achievement of planned targets. Using the mine planning polygons and grade models, a methodology is proposed to measure the dilution ranges in each region. The methodology considers the uncertainty associated with the ore grades to verify the probability of occurrence of dilution in the short-term mine plan. The results demonstrated that the use of uncertainties enabled identification of the areas with a higher potential of incurring operational dilution. Using this information, the plans can be adjusted to minimize dilution, or the result can be used as a factor to correct the planned data. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2021-02-24T04:17:55Z |
dc.type.driver.fl_str_mv |
Estrangeiro 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://hdl.handle.net/10183/218174 |
dc.identifier.issn.pt_BR.fl_str_mv |
0012-7353 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001121249 |
identifier_str_mv |
0012-7353 001121249 |
url |
http://hdl.handle.net/10183/218174 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Dyna : revista de la Facultad de Minas. Medelim, Colômbia. Vol. 87, no. 213 (Apr./Jun.), p. 178-183 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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