Slope stability analysis at highway BR-153 using numerical models
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/143934 |
Resumo: | An existing cut slope on Highway RS-471/BR-153 is studied. The slope is composed of the Serra Geral Formation's material: a highly altered volcanic breccia and above it a slightly altered and very fractured rhyolite. A numerical analysis of the slope is carried out in two dimensions. Fracturing of the rhyolite necessitates the use of a constitutive model for materials with families of discontinuities (Ubiquitous-joint). To simplify the analysis of the problem and to examine some of the most sensitive variables, two more analyses are made, replacing the initial model by a Mohr’s constitutive model, which considers the material as continuous. The results obtained from the Ubiquitous-joint model provide an acceptable representation of the field conditions, showing a failure mechanism type of rockfall from the face of the slope in the rhyolite, and the rupture surface of the breccia, without propagation of surface failure. In the analysis, when considering both materials as continuous, it is not possible to take account the fault conditions simultaneously, and this analysis also requires values of the mechanical parameters different from those recommended in literature. |
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Hundelshaussen Rubio, Ricardo JoséFlórez Gálvez, Jorge HernánZingano, Andre Cezar2016-07-23T02:18:24Z20161807-0353http://hdl.handle.net/10183/143934000996959An existing cut slope on Highway RS-471/BR-153 is studied. The slope is composed of the Serra Geral Formation's material: a highly altered volcanic breccia and above it a slightly altered and very fractured rhyolite. A numerical analysis of the slope is carried out in two dimensions. Fracturing of the rhyolite necessitates the use of a constitutive model for materials with families of discontinuities (Ubiquitous-joint). To simplify the analysis of the problem and to examine some of the most sensitive variables, two more analyses are made, replacing the initial model by a Mohr’s constitutive model, which considers the material as continuous. The results obtained from the Ubiquitous-joint model provide an acceptable representation of the field conditions, showing a failure mechanism type of rockfall from the face of the slope in the rhyolite, and the rupture surface of the breccia, without propagation of surface failure. In the analysis, when considering both materials as continuous, it is not possible to take account the fault conditions simultaneously, and this analysis also requires values of the mechanical parameters different from those recommended in literature.application/pdfengRem: revista Escola de Minas. Ouro Preto, MG. Vol. 69, no. 2 (Apr./June 2016), p. 185-191Estabilidade de taludesMecânica dos solosAnálise numéricaVolcanic brecciaSerra geral formationUbiquitous-jointNumerical modelsSlope stability analysis at highway BR-153 using numerical modelsinfo: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:UFRGSORIGINAL000996959.pdf000996959.pdfTexto completo (inglês)application/pdf4976185http://www.lume.ufrgs.br/bitstream/10183/143934/1/000996959.pdf9648750683b0593a72e0e0d45681adedMD51TEXT000996959.pdf.txt000996959.pdf.txtExtracted Texttext/plain19332http://www.lume.ufrgs.br/bitstream/10183/143934/2/000996959.pdf.txte35d30b0ff1817493e05b1510e2e53cdMD52THUMBNAIL000996959.pdf.jpg000996959.pdf.jpgGenerated Thumbnailimage/jpeg2071http://www.lume.ufrgs.br/bitstream/10183/143934/3/000996959.pdf.jpg545354a6929ab4bcf671d32dbb3be38bMD5310183/1439342021-05-07 05:13:15.916914oai:www.lume.ufrgs.br:10183/143934Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-07T08:13:15Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Slope stability analysis at highway BR-153 using numerical models |
title |
Slope stability analysis at highway BR-153 using numerical models |
spellingShingle |
Slope stability analysis at highway BR-153 using numerical models Hundelshaussen Rubio, Ricardo José Estabilidade de taludes Mecânica dos solos Análise numérica Volcanic breccia Serra geral formation Ubiquitous-joint Numerical models |
title_short |
Slope stability analysis at highway BR-153 using numerical models |
title_full |
Slope stability analysis at highway BR-153 using numerical models |
title_fullStr |
Slope stability analysis at highway BR-153 using numerical models |
title_full_unstemmed |
Slope stability analysis at highway BR-153 using numerical models |
title_sort |
Slope stability analysis at highway BR-153 using numerical models |
author |
Hundelshaussen Rubio, Ricardo José |
author_facet |
Hundelshaussen Rubio, Ricardo José Flórez Gálvez, Jorge Hernán Zingano, Andre Cezar |
author_role |
author |
author2 |
Flórez Gálvez, Jorge Hernán Zingano, Andre Cezar |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Hundelshaussen Rubio, Ricardo José Flórez Gálvez, Jorge Hernán Zingano, Andre Cezar |
dc.subject.por.fl_str_mv |
Estabilidade de taludes Mecânica dos solos Análise numérica |
topic |
Estabilidade de taludes Mecânica dos solos Análise numérica Volcanic breccia Serra geral formation Ubiquitous-joint Numerical models |
dc.subject.eng.fl_str_mv |
Volcanic breccia Serra geral formation Ubiquitous-joint Numerical models |
description |
An existing cut slope on Highway RS-471/BR-153 is studied. The slope is composed of the Serra Geral Formation's material: a highly altered volcanic breccia and above it a slightly altered and very fractured rhyolite. A numerical analysis of the slope is carried out in two dimensions. Fracturing of the rhyolite necessitates the use of a constitutive model for materials with families of discontinuities (Ubiquitous-joint). To simplify the analysis of the problem and to examine some of the most sensitive variables, two more analyses are made, replacing the initial model by a Mohr’s constitutive model, which considers the material as continuous. The results obtained from the Ubiquitous-joint model provide an acceptable representation of the field conditions, showing a failure mechanism type of rockfall from the face of the slope in the rhyolite, and the rupture surface of the breccia, without propagation of surface failure. In the analysis, when considering both materials as continuous, it is not possible to take account the fault conditions simultaneously, and this analysis also requires values of the mechanical parameters different from those recommended in literature. |
publishDate |
2016 |
dc.date.accessioned.fl_str_mv |
2016-07-23T02:18:24Z |
dc.date.issued.fl_str_mv |
2016 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
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info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/143934 |
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1807-0353 |
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000996959 |
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http://hdl.handle.net/10183/143934 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Rem: revista Escola de Minas. Ouro Preto, MG. Vol. 69, no. 2 (Apr./June 2016), p. 185-191 |
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openAccess |
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