Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.

Detalhes bibliográficos
Autor(a) principal: Costa, Giovani Cecatto Lopes Ribeiro da
Data de Publicação: 2024
Outros Autores: Gomes, Guilherme José Cunha, Nierwinski, Helena Paula
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFOP
Texto Completo: https://www.repositorio.ufop.br/handle/123456789/18814
https://doi.org/10.3390/app14146129
Resumo: One of the critical challenges facing the mining sector is related to the prevention and mitigation of catastrophic incidents associated with its tailing dams. As mining tailings are very heterogeneous and field characterization is expensive and complex, geotechnical properties of these materials are largely unknown. The seismic cone penetration test (SCPTu) provides a field approach to estimate a large array of geotechnical information, including the liquefaction potential of tailing dams. Yet, the exploration of strain softening behaviors in geomaterials under undrained loading, utilizing the state parameter (ψ) inferred from SCPTu tests initially applied to soft soils, has been often used for mining tailings. This study is concerned with the implementation of a tailing classification system which uses the ratio between the small strain shear modulus and the cone tip resistance (G0/qt). A series of laboratory tests was executed, and three different methodologies were adopted to assess the effects of (partial) drainage conditions based on 531.26 m of SCPTu measurements conducted at three different upstream iron ore tailing dams in Brazil. Furthermore, the G0/qt ratio is integrated with ψ to assess the liquefaction tendencies of the investigated materials. The findings reveal the heterogeneous nature of the tailings, wherein indications of partial drainage are discernible across numerous records. Liquefaction analyses demonstrate that the tailings exhibit a contractive behavior in over 94% of the SCPTu data, confirming their susceptibility to flow liquefaction. Our findings are relevant for site characterization within iron ore tailing dams and other mining sites with similar geotechnical attributes.
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spelling Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.Tailing damsLiquefactionDrainage conditionsOne of the critical challenges facing the mining sector is related to the prevention and mitigation of catastrophic incidents associated with its tailing dams. As mining tailings are very heterogeneous and field characterization is expensive and complex, geotechnical properties of these materials are largely unknown. The seismic cone penetration test (SCPTu) provides a field approach to estimate a large array of geotechnical information, including the liquefaction potential of tailing dams. Yet, the exploration of strain softening behaviors in geomaterials under undrained loading, utilizing the state parameter (ψ) inferred from SCPTu tests initially applied to soft soils, has been often used for mining tailings. This study is concerned with the implementation of a tailing classification system which uses the ratio between the small strain shear modulus and the cone tip resistance (G0/qt). A series of laboratory tests was executed, and three different methodologies were adopted to assess the effects of (partial) drainage conditions based on 531.26 m of SCPTu measurements conducted at three different upstream iron ore tailing dams in Brazil. Furthermore, the G0/qt ratio is integrated with ψ to assess the liquefaction tendencies of the investigated materials. The findings reveal the heterogeneous nature of the tailings, wherein indications of partial drainage are discernible across numerous records. Liquefaction analyses demonstrate that the tailings exhibit a contractive behavior in over 94% of the SCPTu data, confirming their susceptibility to flow liquefaction. Our findings are relevant for site characterization within iron ore tailing dams and other mining sites with similar geotechnical attributes.2024-10-08T20:56:53Z2024-10-08T20:56:53Z2024info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCOSTA, G. C. L. R. da; GOMES, G. J. C.; NIERWINSKI, H. P. Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests. Applied Sciences-Basel, v. 14, artigo 6129, 2024. Disponível em: <https://www.mdpi.com/2076-3417/14/14/6129>. Acesso em: 15 ago. 2024.2076-3417https://www.repositorio.ufop.br/handle/123456789/18814https://doi.org/10.3390/app14146129This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). Fonte: PDF do artigo.info:eu-repo/semantics/openAccessCosta, Giovani Cecatto Lopes Ribeiro daGomes, Guilherme José CunhaNierwinski, Helena Paulaengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOP2024-10-08T20:56:58Zoai:repositorio.ufop.br:123456789/18814Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332024-10-08T20:56:58Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false
dc.title.none.fl_str_mv Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.
title Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.
spellingShingle Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.
Costa, Giovani Cecatto Lopes Ribeiro da
Tailing dams
Liquefaction
Drainage conditions
title_short Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.
title_full Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.
title_fullStr Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.
title_full_unstemmed Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.
title_sort Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests.
author Costa, Giovani Cecatto Lopes Ribeiro da
author_facet Costa, Giovani Cecatto Lopes Ribeiro da
Gomes, Guilherme José Cunha
Nierwinski, Helena Paula
author_role author
author2 Gomes, Guilherme José Cunha
Nierwinski, Helena Paula
author2_role author
author
dc.contributor.author.fl_str_mv Costa, Giovani Cecatto Lopes Ribeiro da
Gomes, Guilherme José Cunha
Nierwinski, Helena Paula
dc.subject.por.fl_str_mv Tailing dams
Liquefaction
Drainage conditions
topic Tailing dams
Liquefaction
Drainage conditions
description One of the critical challenges facing the mining sector is related to the prevention and mitigation of catastrophic incidents associated with its tailing dams. As mining tailings are very heterogeneous and field characterization is expensive and complex, geotechnical properties of these materials are largely unknown. The seismic cone penetration test (SCPTu) provides a field approach to estimate a large array of geotechnical information, including the liquefaction potential of tailing dams. Yet, the exploration of strain softening behaviors in geomaterials under undrained loading, utilizing the state parameter (ψ) inferred from SCPTu tests initially applied to soft soils, has been often used for mining tailings. This study is concerned with the implementation of a tailing classification system which uses the ratio between the small strain shear modulus and the cone tip resistance (G0/qt). A series of laboratory tests was executed, and three different methodologies were adopted to assess the effects of (partial) drainage conditions based on 531.26 m of SCPTu measurements conducted at three different upstream iron ore tailing dams in Brazil. Furthermore, the G0/qt ratio is integrated with ψ to assess the liquefaction tendencies of the investigated materials. The findings reveal the heterogeneous nature of the tailings, wherein indications of partial drainage are discernible across numerous records. Liquefaction analyses demonstrate that the tailings exhibit a contractive behavior in over 94% of the SCPTu data, confirming their susceptibility to flow liquefaction. Our findings are relevant for site characterization within iron ore tailing dams and other mining sites with similar geotechnical attributes.
publishDate 2024
dc.date.none.fl_str_mv 2024-10-08T20:56:53Z
2024-10-08T20:56:53Z
2024
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.uri.fl_str_mv COSTA, G. C. L. R. da; GOMES, G. J. C.; NIERWINSKI, H. P. Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests. Applied Sciences-Basel, v. 14, artigo 6129, 2024. Disponível em: <https://www.mdpi.com/2076-3417/14/14/6129>. Acesso em: 15 ago. 2024.
2076-3417
https://www.repositorio.ufop.br/handle/123456789/18814
https://doi.org/10.3390/app14146129
identifier_str_mv COSTA, G. C. L. R. da; GOMES, G. J. C.; NIERWINSKI, H. P. Susceptibility to liquefaction of iron ore tailings in upstream dams considering drainage conditions based on seismic piezocone tests. Applied Sciences-Basel, v. 14, artigo 6129, 2024. Disponível em: <https://www.mdpi.com/2076-3417/14/14/6129>. Acesso em: 15 ago. 2024.
2076-3417
url https://www.repositorio.ufop.br/handle/123456789/18814
https://doi.org/10.3390/app14146129
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.format.none.fl_str_mv application/pdf
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
repository.name.fl_str_mv Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)
repository.mail.fl_str_mv repositorio@ufop.edu.br
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