Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling

Detalhes bibliográficos
Autor(a) principal: Bruschi, Giovani Jordi
Data de Publicação: 2021
Outros Autores: Fante, Fernando, Araújo, Mariana Tonini de, Macedo, Gustavo Dias, Ruver, Cesar Alberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/220484
Resumo: In recent years several dam failures have been reported throughout the world, generating a social concern on mine tailings. Along these lines, it became essential to understand the mechanical behavior of these materials in order to refine current design technologies and prevent more tragedies. In this context, this research had two main goals: (i) to analyze bauxite tailings mechanical behavior through isotropically consolidated-undrained triaxial tests and consolidation tests; and (ii) to compare triaxial tests and numerical simulations results. Confining stresses of 75kPa, 150kPa, and 300kPa were applied in the triaxial tests. Numerical modelling was performed through ABAQUS software, in which three different failure criteria were analyzed, Mohr-Coulomb Model (MCM), Drucker-Prager Model (DPM), and Modified Cam-Clay Model (MCCM). Results indicated that all studied criteria showed satisfactory results, however, DPM was the best criterion to simulate bauxite tailings mechanical behavior and respective strength parameters.
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spelling Bruschi, Giovani JordiFante, FernandoAraújo, Mariana Tonini deMacedo, Gustavo DiasRuver, Cesar Alberto2021-05-04T04:27:42Z20211980-9743http://hdl.handle.net/10183/220484001124843In recent years several dam failures have been reported throughout the world, generating a social concern on mine tailings. Along these lines, it became essential to understand the mechanical behavior of these materials in order to refine current design technologies and prevent more tragedies. In this context, this research had two main goals: (i) to analyze bauxite tailings mechanical behavior through isotropically consolidated-undrained triaxial tests and consolidation tests; and (ii) to compare triaxial tests and numerical simulations results. Confining stresses of 75kPa, 150kPa, and 300kPa were applied in the triaxial tests. Numerical modelling was performed through ABAQUS software, in which three different failure criteria were analyzed, Mohr-Coulomb Model (MCM), Drucker-Prager Model (DPM), and Modified Cam-Clay Model (MCCM). Results indicated that all studied criteria showed satisfactory results, however, DPM was the best criterion to simulate bauxite tailings mechanical behavior and respective strength parameters.application/pdfengSoils and rocks: international journal of geotechnical and geoenvironmental journal. São Paulo, SP. Vol. 44, no. 1 (Jan./Mar. 2021), Art. e2021053720, p. 1-10Rejeito de mineraçãoBauxitaComportamento mecânicoEnsaios triaxiaisSimulação numéricaBauxite tailingsMechanical behaviorTriaxial testingNumerical simulationABAQUSAnalysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modellinginfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001124843.pdf.txt001124843.pdf.txtExtracted Texttext/plain28018http://www.lume.ufrgs.br/bitstream/10183/220484/2/001124843.pdf.txt1a5bf881caf012fb053589e32a6ac579MD52ORIGINAL001124843.pdfTexto completo (inglês)application/pdf931961http://www.lume.ufrgs.br/bitstream/10183/220484/1/001124843.pdf41e60cf6e2f501b99f8b1c15a102dfe4MD5110183/2204842021-05-07 04:40:57.246029oai:www.lume.ufrgs.br:10183/220484Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-07T07:40:57Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling
title Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling
spellingShingle Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling
Bruschi, Giovani Jordi
Rejeito de mineração
Bauxita
Comportamento mecânico
Ensaios triaxiais
Simulação numérica
Bauxite tailings
Mechanical behavior
Triaxial testing
Numerical simulation
ABAQUS
title_short Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling
title_full Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling
title_fullStr Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling
title_full_unstemmed Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling
title_sort Analysis of different failure criteria to evaluate bauxite tailings mechanical behavior through numerical modelling
author Bruschi, Giovani Jordi
author_facet Bruschi, Giovani Jordi
Fante, Fernando
Araújo, Mariana Tonini de
Macedo, Gustavo Dias
Ruver, Cesar Alberto
author_role author
author2 Fante, Fernando
Araújo, Mariana Tonini de
Macedo, Gustavo Dias
Ruver, Cesar Alberto
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Bruschi, Giovani Jordi
Fante, Fernando
Araújo, Mariana Tonini de
Macedo, Gustavo Dias
Ruver, Cesar Alberto
dc.subject.por.fl_str_mv Rejeito de mineração
Bauxita
Comportamento mecânico
Ensaios triaxiais
Simulação numérica
topic Rejeito de mineração
Bauxita
Comportamento mecânico
Ensaios triaxiais
Simulação numérica
Bauxite tailings
Mechanical behavior
Triaxial testing
Numerical simulation
ABAQUS
dc.subject.eng.fl_str_mv Bauxite tailings
Mechanical behavior
Triaxial testing
Numerical simulation
ABAQUS
description In recent years several dam failures have been reported throughout the world, generating a social concern on mine tailings. Along these lines, it became essential to understand the mechanical behavior of these materials in order to refine current design technologies and prevent more tragedies. In this context, this research had two main goals: (i) to analyze bauxite tailings mechanical behavior through isotropically consolidated-undrained triaxial tests and consolidation tests; and (ii) to compare triaxial tests and numerical simulations results. Confining stresses of 75kPa, 150kPa, and 300kPa were applied in the triaxial tests. Numerical modelling was performed through ABAQUS software, in which three different failure criteria were analyzed, Mohr-Coulomb Model (MCM), Drucker-Prager Model (DPM), and Modified Cam-Clay Model (MCCM). Results indicated that all studied criteria showed satisfactory results, however, DPM was the best criterion to simulate bauxite tailings mechanical behavior and respective strength parameters.
publishDate 2021
dc.date.accessioned.fl_str_mv 2021-05-04T04:27:42Z
dc.date.issued.fl_str_mv 2021
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/220484
dc.identifier.issn.pt_BR.fl_str_mv 1980-9743
dc.identifier.nrb.pt_BR.fl_str_mv 001124843
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Soils and rocks: international journal of geotechnical and geoenvironmental journal. São Paulo, SP. Vol. 44, no. 1 (Jan./Mar. 2021), Art. e2021053720, p. 1-10
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