Direct block scheduling technology : analysis of avidity.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/11110 |
Resumo: | This study is focused on Direct Block Scheduling testing (Direct Multi-Period Scheduling methodology) which schedules mine production considering the correct discount factor of each mining block, resulting in the final pit. Each block is analyzed individually in order to define the best target period. This methodology presents an improvement of the classical methodology derived from Lerchs-Grossmann’s initial proposition improved by Whittle. This paper presents the differences between these methodologies, specially focused on the algorithms’ avidity. Avidity is classically defined by the voracious search algorithms, whereupon some of the most famous greedy algorithms are Branch and Bound, Brutal Force and Randomized. Strategies based on heuristics can accentuate the voracity of the optimizer system. The applied algorithm use simulated annealing combined with Tabu Search. The most avid algorithm can select the most profitable blocks in early periods, leading to higher present value in the first periods of mine operation. The application of discount factors to blocks on the Lerchs-Grossmann’s final pit has an accentuated effect with time, and this effect may make blocks scheduled for the end of the mine life unfeasible, representing a trend to a decrease in reported reserves. |
id |
UFOP_f4fdde8f987f9bb7eaabf1bf3a572d24 |
---|---|
oai_identifier_str |
oai:localhost:123456789/11110 |
network_acronym_str |
UFOP |
network_name_str |
Repositório Institucional da UFOP |
repository_id_str |
3233 |
spelling |
Souza, Felipe RibeiroBurgarelli, Hudson RodriguesNader, Alizeibek SaleimenArroyo Ortiz, Carlos EnriqueChaves, Leonardo SoaresCarvalho, Luiz AlbertoTorres, Vidal Félix NavarroCâmara, Taís RenataGalery, Roberto2019-04-24T11:00:22Z2019-04-24T11:00:22Z2018SOUZA, F. R. et al. Direct block scheduling technology : analysis of avidity. REM - International Engineering Journal, v. 71, p. 97-104, 2018. Disponível em: <http://www.scielo.br/scielo.php?pid=S2448-167X2018000100097&script=sci_abstract&tlng=en>. Acesso em: 12 fev. 2019.1807-0353http://www.repositorio.ufop.br/handle/123456789/11110This study is focused on Direct Block Scheduling testing (Direct Multi-Period Scheduling methodology) which schedules mine production considering the correct discount factor of each mining block, resulting in the final pit. Each block is analyzed individually in order to define the best target period. This methodology presents an improvement of the classical methodology derived from Lerchs-Grossmann’s initial proposition improved by Whittle. This paper presents the differences between these methodologies, specially focused on the algorithms’ avidity. Avidity is classically defined by the voracious search algorithms, whereupon some of the most famous greedy algorithms are Branch and Bound, Brutal Force and Randomized. Strategies based on heuristics can accentuate the voracity of the optimizer system. The applied algorithm use simulated annealing combined with Tabu Search. The most avid algorithm can select the most profitable blocks in early periods, leading to higher present value in the first periods of mine operation. The application of discount factors to blocks on the Lerchs-Grossmann’s final pit has an accentuated effect with time, and this effect may make blocks scheduled for the end of the mine life unfeasible, representing a trend to a decrease in reported reserves.A 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.info:eu-repo/semantics/openAccessMine planningAvidity optimizationSimulated annealingTabu searchDirect block scheduling technology : analysis of avidity.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/11110/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_DirectBlockScheduling.pdfARTIGO_DirectBlockScheduling.pdfapplication/pdf664706http://www.repositorio.ufop.br/bitstream/123456789/11110/1/ARTIGO_DirectBlockScheduling.pdffed6660dc2206853ac9db32f48358aecMD51123456789/111102019-04-24 07:00:22.537oai:localhost:123456789/11110RGVjbGFyYcOnw6NvIGRlIGRpc3RyaWJ1acOnw6NvIG7Do28tZXhjbHVzaXZhCgpPIHJlZmVyaWRvIGF1dG9yOgoKYSlEZWNsYXJhIHF1ZSBvIGRvY3VtZW50byBlbnRyZWd1ZSDDqSBzZXUgdHJhYmFsaG8gb3JpZ2luYWwgZSBxdWUgZGV0w6ltIG8gZGlyZWl0byBkZSBjb25jZWRlciBvcyBkaXJlaXRvcyBjb250aWRvcyBuZXN0YSBsaWNlbsOnYS4gRGVjbGFyYSB0YW1iw6ltIHF1ZSBhIGVudHJlZ2EgZG8gZG9jdW1lbnRvIG7Do28gaW5mcmluZ2UsIHRhbnRvIHF1YW50byBsaGUgw6kgcG9zc8OtdmVsIHNhYmVyLCBvcyBkaXJlaXRvcyBkZSBxdWFscXVlciBwZXNzb2Egb3UgZW50aWRhZGUuCgpiKVNlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIGNvbnTDqW0gbWF0ZXJpYWwgZG8gcXVhbCBuw6NvIGRldMOpbSBvcyBkaXJlaXRvcyBkZSBhdXRvciwgZGVjbGFyYSBxdWUgb2J0ZXZlIGF1dG9yaXphw6fDo28gZG8gZGV0ZW50b3IgZG9zIGRpcmVpdG9zIGRlIGF1dG9yIHBhcmEgY29uY2VkZXIgw6AgVW5pdmVyc2lkYWRlIEZlZGVyYWwgZGUgT3VybyBQcmV0by9VRk9QIG9zIGRpcmVpdG9zIHJlcXVlcmlkb3MgcG9yIGVzdGEgbGljZW7Dp2EgZSBxdWUgZXNzZSBtYXRlcmlhbCwgY3Vqb3MgZGlyZWl0b3Mgc8OjbyBkZSB0ZXJjZWlyb3MsIGVzdMOhIGNsYXJhbWVudGUgaWRlbnRpZmljYWRvIGUgcmVjb25oZWNpZG8gbm8gdGV4dG8gb3UgY29udGXDumRvcyBkbyBkb2N1bWVudG8gZW50cmVndWUuCgpjKVNlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIMOpIGJhc2VhZG8gZW0gdHJhYmFsaG8gZmluYW5jaWFkbyBvdSBhcG9pYWRvIHBvciBvdXRyYSBpbnN0aXR1acOnw6NvIHF1ZSBuw6NvIGEgVUZPUCwgZGVjbGFyYSBxdWUgY3VtcHJpdSBxdWFpc3F1ZXIgb2JyaWdhw6fDtWVzIGV4aWdpZGFzIHBlbG8gY29udHJhdG8gb3UgYWNvcmRvLgoKRepositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-04-24T11:00:22Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Direct block scheduling technology : analysis of avidity. |
title |
Direct block scheduling technology : analysis of avidity. |
spellingShingle |
Direct block scheduling technology : analysis of avidity. Souza, Felipe Ribeiro Mine planning Avidity optimization Simulated annealing Tabu search |
title_short |
Direct block scheduling technology : analysis of avidity. |
title_full |
Direct block scheduling technology : analysis of avidity. |
title_fullStr |
Direct block scheduling technology : analysis of avidity. |
title_full_unstemmed |
Direct block scheduling technology : analysis of avidity. |
title_sort |
Direct block scheduling technology : analysis of avidity. |
author |
Souza, Felipe Ribeiro |
author_facet |
Souza, Felipe Ribeiro Burgarelli, Hudson Rodrigues Nader, Alizeibek Saleimen Arroyo Ortiz, Carlos Enrique Chaves, Leonardo Soares Carvalho, Luiz Alberto Torres, Vidal Félix Navarro Câmara, Taís Renata Galery, Roberto |
author_role |
author |
author2 |
Burgarelli, Hudson Rodrigues Nader, Alizeibek Saleimen Arroyo Ortiz, Carlos Enrique Chaves, Leonardo Soares Carvalho, Luiz Alberto Torres, Vidal Félix Navarro Câmara, Taís Renata Galery, Roberto |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Souza, Felipe Ribeiro Burgarelli, Hudson Rodrigues Nader, Alizeibek Saleimen Arroyo Ortiz, Carlos Enrique Chaves, Leonardo Soares Carvalho, Luiz Alberto Torres, Vidal Félix Navarro Câmara, Taís Renata Galery, Roberto |
dc.subject.por.fl_str_mv |
Mine planning Avidity optimization Simulated annealing Tabu search |
topic |
Mine planning Avidity optimization Simulated annealing Tabu search |
description |
This study is focused on Direct Block Scheduling testing (Direct Multi-Period Scheduling methodology) which schedules mine production considering the correct discount factor of each mining block, resulting in the final pit. Each block is analyzed individually in order to define the best target period. This methodology presents an improvement of the classical methodology derived from Lerchs-Grossmann’s initial proposition improved by Whittle. This paper presents the differences between these methodologies, specially focused on the algorithms’ avidity. Avidity is classically defined by the voracious search algorithms, whereupon some of the most famous greedy algorithms are Branch and Bound, Brutal Force and Randomized. Strategies based on heuristics can accentuate the voracity of the optimizer system. The applied algorithm use simulated annealing combined with Tabu Search. The most avid algorithm can select the most profitable blocks in early periods, leading to higher present value in the first periods of mine operation. The application of discount factors to blocks on the Lerchs-Grossmann’s final pit has an accentuated effect with time, and this effect may make blocks scheduled for the end of the mine life unfeasible, representing a trend to a decrease in reported reserves. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2019-04-24T11:00:22Z |
dc.date.available.fl_str_mv |
2019-04-24T11:00:22Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SOUZA, F. R. et al. Direct block scheduling technology : analysis of avidity. REM - International Engineering Journal, v. 71, p. 97-104, 2018. Disponível em: <http://www.scielo.br/scielo.php?pid=S2448-167X2018000100097&script=sci_abstract&tlng=en>. Acesso em: 12 fev. 2019. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/11110 |
dc.identifier.issn.none.fl_str_mv |
1807-0353 |
identifier_str_mv |
SOUZA, F. R. et al. Direct block scheduling technology : analysis of avidity. REM - International Engineering Journal, v. 71, p. 97-104, 2018. Disponível em: <http://www.scielo.br/scielo.php?pid=S2448-167X2018000100097&script=sci_abstract&tlng=en>. Acesso em: 12 fev. 2019. 1807-0353 |
url |
http://www.repositorio.ufop.br/handle/123456789/11110 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
instname_str |
Universidade Federal de Ouro Preto (UFOP) |
instacron_str |
UFOP |
institution |
UFOP |
reponame_str |
Repositório Institucional da UFOP |
collection |
Repositório Institucional da UFOP |
bitstream.url.fl_str_mv |
http://www.repositorio.ufop.br/bitstream/123456789/11110/2/license.txt http://www.repositorio.ufop.br/bitstream/123456789/11110/1/ARTIGO_DirectBlockScheduling.pdf |
bitstream.checksum.fl_str_mv |
62604f8d955274beb56c80ce1ee5dcae fed6660dc2206853ac9db32f48358aec |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP) |
repository.mail.fl_str_mv |
repositorio@ufop.edu.br |
_version_ |
1797950142043652096 |