Drained and undrained behavior of an aeolian sand from Natal, Brazil
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 UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/30534 |
Resumo: | The behavior of sands subjected to diverse loading conditions has been the object of many studies in recent decades. Constitutive models that are able to simulate the behavior of sands have been developed based on critical state theory. Researchers have shown that the defining parameters of the critical state line (CSL) can be obtained by performing drained and undrained tests on samples with different initial densities. This work aims to verify the drained and undrained behavior of aeolian sand from Natal, Brazil, based on critical state soil mechanics. Drained and undrained tests were performed on samples with initial void ratios equal to 0.7 and 0.8, which correspond to loose and medium-dense relative densities, respectively. Samples with both void ratios were subjected to confining stresses equal to 50, 100, 200 and 300 kPa. The results show that the critical state line can be defined from the drained and undrained tests performed on samples with loose and medium-dense initial relative densities. The parameters from the critical state theory were obtained using projections on the planes p’- q and lnp’ - v. The critical state friction angle is equal to 31.5°, and it is compatible with clean and uniformly graded sands with angular to subangular features and composed mostly of quartz. The obtained M, and values are equal to 1.26, 1.863 and 0.03, respectively. The obtained parameters will be used in analyses and numerical simulations of the geotechnical structures built on aeolian dune deposits from the city of Natal, Brazil |
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Souza Júnior, Paulo Leite deSantos Júnior, Olavo Francisco dosFontoura, Tahyara BarbalhoFreitas Neto, Osvaldo de2020-11-09T17:42:34Z2020-11-09T17:42:34Z2020-06SOUZA JUNIOR, P. L.; SANTOS JÚNIOR, O. F.; FONTOURA, T. B. ; FREITAS NETO, O. . Drained and Undrained Behavior of an Aeolian Sand from Natal, Brazil. Soils and Rocks, v. 43, p. 263-270, 2020. Disponível em: https://www.soilsandrocks.com/site/. Acesso em: 27 out. 2020. DOI: 10.28927/SR.432263https://repositorio.ufrn.br/handle/123456789/3053410.28927/SR.432263Brazilian Association for Soil Mechanics and Geotechnical EngineeringSteady stateTriaxial testcritical friction angleCritical stateDune sandLoose sandDrained and undrained behavior of an aeolian sand from Natal, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleThe behavior of sands subjected to diverse loading conditions has been the object of many studies in recent decades. Constitutive models that are able to simulate the behavior of sands have been developed based on critical state theory. Researchers have shown that the defining parameters of the critical state line (CSL) can be obtained by performing drained and undrained tests on samples with different initial densities. This work aims to verify the drained and undrained behavior of aeolian sand from Natal, Brazil, based on critical state soil mechanics. Drained and undrained tests were performed on samples with initial void ratios equal to 0.7 and 0.8, which correspond to loose and medium-dense relative densities, respectively. Samples with both void ratios were subjected to confining stresses equal to 50, 100, 200 and 300 kPa. The results show that the critical state line can be defined from the drained and undrained tests performed on samples with loose and medium-dense initial relative densities. The parameters from the critical state theory were obtained using projections on the planes p’- q and lnp’ - v. The critical state friction angle is equal to 31.5°, and it is compatible with clean and uniformly graded sands with angular to subangular features and composed mostly of quartz. The obtained M, and values are equal to 1.26, 1.863 and 0.03, respectively. The obtained parameters will be used in analyses and numerical simulations of the geotechnical structures built on aeolian dune deposits from the city of Natal, Brazilengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessORIGINALDrainedAndUndrainedBehavior_SantosJunior_2020.pdfDrainedAndUndrainedBehavior_SantosJunior_2020.pdfapplication/pdf2998249https://repositorio.ufrn.br/bitstream/123456789/30534/1/DrainedAndUndrainedBehavior_SantosJunior_2020.pdfad9c1faec00fb46c12d9c10c2aa48353MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/30534/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTDrainedAndUndrainedBehavior_SantosJunior_2020.pdf.txtDrainedAndUndrainedBehavior_SantosJunior_2020.pdf.txtExtracted texttext/plain23912https://repositorio.ufrn.br/bitstream/123456789/30534/3/DrainedAndUndrainedBehavior_SantosJunior_2020.pdf.txt8c825caff1cceadfe8bcdcbf5e2b3481MD53THUMBNAILDrainedAndUndrainedBehavior_SantosJunior_2020.pdf.jpgDrainedAndUndrainedBehavior_SantosJunior_2020.pdf.jpgGenerated Thumbnailimage/jpeg1730https://repositorio.ufrn.br/bitstream/123456789/30534/4/DrainedAndUndrainedBehavior_SantosJunior_2020.pdf.jpg2191f68785a23799e42bf4add6035644MD54123456789/305342020-11-15 05:07:02.421oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-11-15T08:07:02Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Drained and undrained behavior of an aeolian sand from Natal, Brazil |
title |
Drained and undrained behavior of an aeolian sand from Natal, Brazil |
spellingShingle |
Drained and undrained behavior of an aeolian sand from Natal, Brazil Souza Júnior, Paulo Leite de Steady state Triaxial test critical friction angle Critical state Dune sand Loose sand |
title_short |
Drained and undrained behavior of an aeolian sand from Natal, Brazil |
title_full |
Drained and undrained behavior of an aeolian sand from Natal, Brazil |
title_fullStr |
Drained and undrained behavior of an aeolian sand from Natal, Brazil |
title_full_unstemmed |
Drained and undrained behavior of an aeolian sand from Natal, Brazil |
title_sort |
Drained and undrained behavior of an aeolian sand from Natal, Brazil |
author |
Souza Júnior, Paulo Leite de |
author_facet |
Souza Júnior, Paulo Leite de Santos Júnior, Olavo Francisco dos Fontoura, Tahyara Barbalho Freitas Neto, Osvaldo de |
author_role |
author |
author2 |
Santos Júnior, Olavo Francisco dos Fontoura, Tahyara Barbalho Freitas Neto, Osvaldo de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Souza Júnior, Paulo Leite de Santos Júnior, Olavo Francisco dos Fontoura, Tahyara Barbalho Freitas Neto, Osvaldo de |
dc.subject.por.fl_str_mv |
Steady state Triaxial test critical friction angle Critical state Dune sand Loose sand |
topic |
Steady state Triaxial test critical friction angle Critical state Dune sand Loose sand |
description |
The behavior of sands subjected to diverse loading conditions has been the object of many studies in recent decades. Constitutive models that are able to simulate the behavior of sands have been developed based on critical state theory. Researchers have shown that the defining parameters of the critical state line (CSL) can be obtained by performing drained and undrained tests on samples with different initial densities. This work aims to verify the drained and undrained behavior of aeolian sand from Natal, Brazil, based on critical state soil mechanics. Drained and undrained tests were performed on samples with initial void ratios equal to 0.7 and 0.8, which correspond to loose and medium-dense relative densities, respectively. Samples with both void ratios were subjected to confining stresses equal to 50, 100, 200 and 300 kPa. The results show that the critical state line can be defined from the drained and undrained tests performed on samples with loose and medium-dense initial relative densities. The parameters from the critical state theory were obtained using projections on the planes p’- q and lnp’ - v. The critical state friction angle is equal to 31.5°, and it is compatible with clean and uniformly graded sands with angular to subangular features and composed mostly of quartz. The obtained M, and values are equal to 1.26, 1.863 and 0.03, respectively. The obtained parameters will be used in analyses and numerical simulations of the geotechnical structures built on aeolian dune deposits from the city of Natal, Brazil |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-11-09T17:42:34Z |
dc.date.available.fl_str_mv |
2020-11-09T17:42:34Z |
dc.date.issued.fl_str_mv |
2020-06 |
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 JUNIOR, P. L.; SANTOS JÚNIOR, O. F.; FONTOURA, T. B. ; FREITAS NETO, O. . Drained and Undrained Behavior of an Aeolian Sand from Natal, Brazil. Soils and Rocks, v. 43, p. 263-270, 2020. Disponível em: https://www.soilsandrocks.com/site/. Acesso em: 27 out. 2020. DOI: 10.28927/SR.432263 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/30534 |
dc.identifier.doi.none.fl_str_mv |
10.28927/SR.432263 |
identifier_str_mv |
SOUZA JUNIOR, P. L.; SANTOS JÚNIOR, O. F.; FONTOURA, T. B. ; FREITAS NETO, O. . Drained and Undrained Behavior of an Aeolian Sand from Natal, Brazil. Soils and Rocks, v. 43, p. 263-270, 2020. Disponível em: https://www.soilsandrocks.com/site/. Acesso em: 27 out. 2020. DOI: 10.28927/SR.432263 10.28927/SR.432263 |
url |
https://repositorio.ufrn.br/handle/123456789/30534 |
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.publisher.none.fl_str_mv |
Brazilian Association for Soil Mechanics and Geotechnical Engineering |
publisher.none.fl_str_mv |
Brazilian Association for Soil Mechanics and Geotechnical Engineering |
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