Condutividade hidráulica após ensaio de squeezing de GCL percolado com água
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca de teses e dissertações da Universidade de Passo Fundo (BDTD UPF) |
Texto Completo: | http://tede.upf.br:8080/jspui/handle/tede/2278 |
Resumo: | The use of bentonite geocomposites (GCL) has proven to be an efficient alternative for barriers system in landfill works, with the function of protecting the soil and groundwater from contamination. This material presents low hydraulic conductivity when hydrated, increasing its thickness due to the expansion of bentonite, which, however, makes it more fragile. This expansion exposes the GCL to the possibility of the occurrence of the phenomenon known as lateral displacement of bentonite (squeezing). This phenomenon is a consequence of a stationary, non-perforating load applied to the GCL, which is installed under insufficient topsoil, and may result in an increase in the permeability of the material. In this context, the objective of this research was to study the hydraulic conductivity of GCL permeated with water, after the phenomenon of lateral displacement of bentonite (squeezing). To achieve this goal, samples (GCL + topsoil) were subjected to static loading through a CBR (California Bearing Ratio) piston, in modified version, with ratios H/B (H is the thickness of the topsoil and B the diameter of the piston) of 1.0;1.5;2.0, in triplicate. Next, the samples were submitted to hydraulic conductivity testing, in triplicate, in a flexible wall permeameter. All samples showed high values of permeability (around 10-9 m/s) at the beginning of percolation, followed by a gradual reduction until they reached a characteristic value of approximately 5 x 10-11 m/s. The samples with H/B = 1.0 presented the squeezing phenomenon, however, by the end of the hydraulic conductivity test they had regenerated, thus demonstrating that the GCL can guarantee an adequate functioning, even when there is lateral displacement of the bentonite. |
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Prietto, Pedro Domingos MarquesCPF 39448851049http://lattes.cnpq.br/3908748382062851Floss, Márcio FelipeCPF 00538112085http://lattes.cnpq.br/3477360507512154CPF 02098498004http://lattes.cnpq.br/1971172609384525Luvison, Camila Miotto da Silva2022-08-23T00:34:15Z2022-03-28LUVISON, Camila Miotto da Silva. Condutividade hidráulica após ensaio de squeezing de GCL percolado com água. 2022. 72 f. Dissertação (Mestrado em Engenharia Civil e Ambiental) - Universidade de Passo Fundo, Passo Fundo, RS, 2022.http://tede.upf.br:8080/jspui/handle/tede/2278The use of bentonite geocomposites (GCL) has proven to be an efficient alternative for barriers system in landfill works, with the function of protecting the soil and groundwater from contamination. This material presents low hydraulic conductivity when hydrated, increasing its thickness due to the expansion of bentonite, which, however, makes it more fragile. This expansion exposes the GCL to the possibility of the occurrence of the phenomenon known as lateral displacement of bentonite (squeezing). This phenomenon is a consequence of a stationary, non-perforating load applied to the GCL, which is installed under insufficient topsoil, and may result in an increase in the permeability of the material. In this context, the objective of this research was to study the hydraulic conductivity of GCL permeated with water, after the phenomenon of lateral displacement of bentonite (squeezing). To achieve this goal, samples (GCL + topsoil) were subjected to static loading through a CBR (California Bearing Ratio) piston, in modified version, with ratios H/B (H is the thickness of the topsoil and B the diameter of the piston) of 1.0;1.5;2.0, in triplicate. Next, the samples were submitted to hydraulic conductivity testing, in triplicate, in a flexible wall permeameter. All samples showed high values of permeability (around 10-9 m/s) at the beginning of percolation, followed by a gradual reduction until they reached a characteristic value of approximately 5 x 10-11 m/s. The samples with H/B = 1.0 presented the squeezing phenomenon, however, by the end of the hydraulic conductivity test they had regenerated, thus demonstrating that the GCL can guarantee an adequate functioning, even when there is lateral displacement of the bentonite.O uso de geocompostos bentoníticos (GCL) vem se mostrando uma alternativa eficiente para barreiras impermeabilizantes em obras de aterros sanitários, com a função de proteger da contaminação o solo e as águas subterrâneas. Este material apresenta baixa condutividade hidráulica quando hidratado, aumentando sua espessura devido à expansão da bentonita, o que, porém, torna-o mais frágil. Essa expansão expõe o GCL a possibilidade da ocorrência do fenômeno conhecido como deslocamento lateral da bentonita (do inglês squeezing). Tal fenômeno é consequência de uma carga não perfurante, estacionária, aplicada sobre o GCL, o qual se encontra instalado sob insuficiente solo de cobertura, podendo resultar em um aumento de permeabilidade do material. Neste contexto, o objetivo desta pesquisa foi o de estudar a condutividade hidráulica de GCL permeado com água, após o fenômeno de deslocamento lateral da bentonita (squeezing). Para atingir esse objetivo, amostras (GCL + solo de cobertura) foram submetidas a um carregamento estático através de um pistão CBR (Índice de Suporte Califórnia), na versão modificada, com razões H/B (H é a espessura do solo de cobertura e B o diâmetro do pistão) de 1,0;1,5;2,0, em triplicata. Na sequência, as amostras eram submetidas ao ensaio de condutividade hidráulica, em triplicata, em um permeâmetro de parede flexível. Todas as amostras ensaiadas apresentaram valores altos de permeabilidade (na ordem de 10-9 m/s) no início da percolação, seguidos de uma redução gradual até atingirem um valor característico de aproximadamente 5 x 10-11 m/s. As amostras com H/B=1,0 apresentaram o fenômeno de squeezing, entretanto ao final do ensaio de condutividade hidráulica as mesmas haviam se regenerado, demonstrando assim que o GCL pode garantir um adequado funcionamento, mesmo sofrendo deslocamento lateral da bentonita.Submitted by Jucelei Domingues (jucelei@upf.br) on 2022-08-23T00:34:15Z No. of bitstreams: 1 2022CamilaLuvison.pdf: 4907839 bytes, checksum: be1212169cc22a6462ae6a7015f94fe7 (MD5)Made available in DSpace on 2022-08-23T00:34:15Z (GMT). No. of bitstreams: 1 2022CamilaLuvison.pdf: 4907839 bytes, checksum: be1212169cc22a6462ae6a7015f94fe7 (MD5) Previous issue date: 2022-03-28Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade de Passo FundoPrograma de Pós-Graduação em Ciências AmbientaisUPFBrasilFaculdade de Engenharia e Arquitetura – FEARCompostos orgânicosSolos - ConservaçãoENGENHARIAS::ENGENHARIA CIVILCondutividade hidráulica após ensaio de squeezing de GCL percolado com águainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-20057336902156154425005006006008147033241558623806-62748332150463957722075167498588264571info:eu-repo/semantics/openAccessreponame:Biblioteca de teses e dissertações da Universidade de Passo Fundo (BDTD UPF)instname:Universidade de Passo Fundo (UPF)instacron:UPFORIGINAL2022CamilaLuvison.pdf2022CamilaLuvison.pdfapplication/pdf4907839http://tede.upf.br:8080/jspui/bitstream/tede/2278/2/2022CamilaLuvison.pdfbe1212169cc22a6462ae6a7015f94fe7MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82053http://tede.upf.br:8080/jspui/bitstream/tede/2278/1/license.txt1ea0bfd7af108792edd8df732bb777fcMD51tede/22782022-08-22 21:46:14.529oai:tede.upf.br: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Biblioteca Digital de Teses e DissertaçõesPUBhttp://tede.upf.br/oai/requestbiblio@upf.br || bio@upf.br || cas@upf.br || car@upf.br || lve@upf.br || sar@upf.br || sol@upf.br || upfmundi@upf.br || jucelei@upf.bropendoar:2022-08-23T00:46:14Biblioteca de teses e dissertações da Universidade de Passo Fundo (BDTD UPF) - Universidade de Passo Fundo (UPF)false |
dc.title.por.fl_str_mv |
Condutividade hidráulica após ensaio de squeezing de GCL percolado com água |
title |
Condutividade hidráulica após ensaio de squeezing de GCL percolado com água |
spellingShingle |
Condutividade hidráulica após ensaio de squeezing de GCL percolado com água Luvison, Camila Miotto da Silva Compostos orgânicos Solos - Conservação ENGENHARIAS::ENGENHARIA CIVIL |
title_short |
Condutividade hidráulica após ensaio de squeezing de GCL percolado com água |
title_full |
Condutividade hidráulica após ensaio de squeezing de GCL percolado com água |
title_fullStr |
Condutividade hidráulica após ensaio de squeezing de GCL percolado com água |
title_full_unstemmed |
Condutividade hidráulica após ensaio de squeezing de GCL percolado com água |
title_sort |
Condutividade hidráulica após ensaio de squeezing de GCL percolado com água |
author |
Luvison, Camila Miotto da Silva |
author_facet |
Luvison, Camila Miotto da Silva |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Prietto, Pedro Domingos Marques |
dc.contributor.advisor1ID.fl_str_mv |
CPF 39448851049 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3908748382062851 |
dc.contributor.advisor-co1.fl_str_mv |
Floss, Márcio Felipe |
dc.contributor.advisor-co1ID.fl_str_mv |
CPF 00538112085 |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/3477360507512154 |
dc.contributor.authorID.fl_str_mv |
CPF 02098498004 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1971172609384525 |
dc.contributor.author.fl_str_mv |
Luvison, Camila Miotto da Silva |
contributor_str_mv |
Prietto, Pedro Domingos Marques Floss, Márcio Felipe |
dc.subject.por.fl_str_mv |
Compostos orgânicos Solos - Conservação |
topic |
Compostos orgânicos Solos - Conservação ENGENHARIAS::ENGENHARIA CIVIL |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA CIVIL |
description |
The use of bentonite geocomposites (GCL) has proven to be an efficient alternative for barriers system in landfill works, with the function of protecting the soil and groundwater from contamination. This material presents low hydraulic conductivity when hydrated, increasing its thickness due to the expansion of bentonite, which, however, makes it more fragile. This expansion exposes the GCL to the possibility of the occurrence of the phenomenon known as lateral displacement of bentonite (squeezing). This phenomenon is a consequence of a stationary, non-perforating load applied to the GCL, which is installed under insufficient topsoil, and may result in an increase in the permeability of the material. In this context, the objective of this research was to study the hydraulic conductivity of GCL permeated with water, after the phenomenon of lateral displacement of bentonite (squeezing). To achieve this goal, samples (GCL + topsoil) were subjected to static loading through a CBR (California Bearing Ratio) piston, in modified version, with ratios H/B (H is the thickness of the topsoil and B the diameter of the piston) of 1.0;1.5;2.0, in triplicate. Next, the samples were submitted to hydraulic conductivity testing, in triplicate, in a flexible wall permeameter. All samples showed high values of permeability (around 10-9 m/s) at the beginning of percolation, followed by a gradual reduction until they reached a characteristic value of approximately 5 x 10-11 m/s. The samples with H/B = 1.0 presented the squeezing phenomenon, however, by the end of the hydraulic conductivity test they had regenerated, thus demonstrating that the GCL can guarantee an adequate functioning, even when there is lateral displacement of the bentonite. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-08-23T00:34:15Z |
dc.date.issued.fl_str_mv |
2022-03-28 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LUVISON, Camila Miotto da Silva. Condutividade hidráulica após ensaio de squeezing de GCL percolado com água. 2022. 72 f. Dissertação (Mestrado em Engenharia Civil e Ambiental) - Universidade de Passo Fundo, Passo Fundo, RS, 2022. |
dc.identifier.uri.fl_str_mv |
http://tede.upf.br:8080/jspui/handle/tede/2278 |
identifier_str_mv |
LUVISON, Camila Miotto da Silva. Condutividade hidráulica após ensaio de squeezing de GCL percolado com água. 2022. 72 f. Dissertação (Mestrado em Engenharia Civil e Ambiental) - Universidade de Passo Fundo, Passo Fundo, RS, 2022. |
url |
http://tede.upf.br:8080/jspui/handle/tede/2278 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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-2005733690215615442 |
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500 500 600 600 |
dc.relation.department.fl_str_mv |
8147033241558623806 |
dc.relation.cnpq.fl_str_mv |
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2075167498588264571 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de Passo Fundo |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciências Ambientais |
dc.publisher.initials.fl_str_mv |
UPF |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Faculdade de Engenharia e Arquitetura – FEAR |
publisher.none.fl_str_mv |
Universidade de Passo Fundo |
dc.source.none.fl_str_mv |
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