Survey of discontinuities and evaluation of the slope stability at Mangueirão mine
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista Monografias Ambientais |
Texto Completo: | http://periodicos.ufsm.br/remoa/article/view/18716 |
Resumo: | The study and control of slope stability have grown greatly in recent decades, so the quality and the reliability of the results of an analysis of stability are very important because they provide savings for the enterprise and security for workers. This article aims to address the geological and geotechnical aspects considered most important for the stability of slope excavation in rock masses. To achieve this goal, a review of the characteristics of discontinuities was held as spacing, orientation, opening, filling, percolation and roughness fractures. Through scanlines, was made histogram frequency of these discontinuities, stereographic projections in the software stereonet9 and identification of the main families of discontinuities, because the main determinants of failure modes in rock masses are these structures. To do so, seven slopes were selected, with evidence of instability, which were subjected to a series of field studies to obtain the parameters necessary to reach the minimum safety factor. In this way situations were simulated eight 45 ° intervals with mining advance, that in three of them were obtained satisfactory results, given the expectation of work. |
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Survey of discontinuities and evaluation of the slope stability at Mangueirão mineLevantamento das descontinuidades e avaliação da estabilidade de taludes da mina do MangueirãoScanlineDiscontinuitiesStereographic projectionsSafety factorSlope stabilityScanlineDescontinuidadesProjeções-estereográficasFator de segurançaEstabilidade de taludesThe study and control of slope stability have grown greatly in recent decades, so the quality and the reliability of the results of an analysis of stability are very important because they provide savings for the enterprise and security for workers. This article aims to address the geological and geotechnical aspects considered most important for the stability of slope excavation in rock masses. To achieve this goal, a review of the characteristics of discontinuities was held as spacing, orientation, opening, filling, percolation and roughness fractures. Through scanlines, was made histogram frequency of these discontinuities, stereographic projections in the software stereonet9 and identification of the main families of discontinuities, because the main determinants of failure modes in rock masses are these structures. To do so, seven slopes were selected, with evidence of instability, which were subjected to a series of field studies to obtain the parameters necessary to reach the minimum safety factor. In this way situations were simulated eight 45 ° intervals with mining advance, that in three of them were obtained satisfactory results, given the expectation of work.O estudo e o controle da estabilidade de taludes têm crescido muito nas últimas décadas, logo a qualidade e a confiabilidade dos resultados de uma análise destas estabilidades são muito importantes, pois proporcionam economia para o empreendedor e segurança para os trabalhadores. Este artigo tem como objetivo abordar os aspectos geológico-geotécnicos considerados mais importantes para a estabilidade de taludes de escavação em maciços rochosos. Para alcançar tal objetivo, foi realizada uma revisão das características das descontinuidades, como: espaçamento, orientação, abertura, preenchimento, percolação e rugosidade de fraturas. Através de scanlines, foram confeccionados histogramas de frequência destas descontinuidades, projeções estereográficas através do software stereonet9 e identificação das principais famílias de descontinuidades, pois são estas estruturas os principais condicionantes dos modos de ruptura em maciços rochosos. Para tal, foram selecionados sete taludes, com evidências de instabilidades, que foram sujeitos a um conjunto de estudos de campo para obtenção dos parâmetros necessários para se chegar ao fator mínimo de segurança. Desta forma, foram simuladas oito situações de avanço de lavra com intervalos de 45°, que em três delas foram obtidos resultados satisfatórios, atendendo à expectativa do trabalho desenvolvidoUniversidade Federal de Santa Maria2015-07-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://periodicos.ufsm.br/remoa/article/view/1871610.5902/2236130818716Monografias Ambientais; REMOA, V.14, 2015, ESPECIAL EDITION: TECNOLOGIA EM MINERAÇÃO – UNIPAMPA – CAMPUS DE CAÇAPAVA DO SUL – RS; 98-115Revista Monografias Ambientais; REMOA, V. 14, 2015, EDIÇÃO ESPECIAL: TECNOLOGIA EM MINERAÇÃO – UNIPAMPA – CAMPUS DE CAÇAPAVA DO SUL – RS; 98-1152236-13082236-1308reponame:Revista Monografias Ambientaisinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttp://periodicos.ufsm.br/remoa/article/view/18716/pdfCopyright (c) 2015 Revista Monografias Ambientaisinfo:eu-repo/semantics/openAccessPaz, Valmor MadeiraGonçalves, Ítalo GomesOliveira Neto, RaulSouza, Luis Eduardo deAbichequer, Luciana Arnt2021-05-07T12:41:55Zoai:ojs.pkp.sfu.ca:article/18716Revistahttps://periodicos.ufsm.br/remoaONGhttp://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/remoa/oai||remoa.ufsm@gmail.com2236-13082236-1308opendoar:2021-05-07T12:41:55Revista Monografias Ambientais - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Survey of discontinuities and evaluation of the slope stability at Mangueirão mine Levantamento das descontinuidades e avaliação da estabilidade de taludes da mina do Mangueirão |
title |
Survey of discontinuities and evaluation of the slope stability at Mangueirão mine |
spellingShingle |
Survey of discontinuities and evaluation of the slope stability at Mangueirão mine Paz, Valmor Madeira Scanline Discontinuities Stereographic projections Safety factor Slope stability Scanline Descontinuidades Projeções-estereográficas Fator de segurança Estabilidade de taludes |
title_short |
Survey of discontinuities and evaluation of the slope stability at Mangueirão mine |
title_full |
Survey of discontinuities and evaluation of the slope stability at Mangueirão mine |
title_fullStr |
Survey of discontinuities and evaluation of the slope stability at Mangueirão mine |
title_full_unstemmed |
Survey of discontinuities and evaluation of the slope stability at Mangueirão mine |
title_sort |
Survey of discontinuities and evaluation of the slope stability at Mangueirão mine |
author |
Paz, Valmor Madeira |
author_facet |
Paz, Valmor Madeira Gonçalves, Ítalo Gomes Oliveira Neto, Raul Souza, Luis Eduardo de Abichequer, Luciana Arnt |
author_role |
author |
author2 |
Gonçalves, Ítalo Gomes Oliveira Neto, Raul Souza, Luis Eduardo de Abichequer, Luciana Arnt |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Paz, Valmor Madeira Gonçalves, Ítalo Gomes Oliveira Neto, Raul Souza, Luis Eduardo de Abichequer, Luciana Arnt |
dc.subject.por.fl_str_mv |
Scanline Discontinuities Stereographic projections Safety factor Slope stability Scanline Descontinuidades Projeções-estereográficas Fator de segurança Estabilidade de taludes |
topic |
Scanline Discontinuities Stereographic projections Safety factor Slope stability Scanline Descontinuidades Projeções-estereográficas Fator de segurança Estabilidade de taludes |
description |
The study and control of slope stability have grown greatly in recent decades, so the quality and the reliability of the results of an analysis of stability are very important because they provide savings for the enterprise and security for workers. This article aims to address the geological and geotechnical aspects considered most important for the stability of slope excavation in rock masses. To achieve this goal, a review of the characteristics of discontinuities was held as spacing, orientation, opening, filling, percolation and roughness fractures. Through scanlines, was made histogram frequency of these discontinuities, stereographic projections in the software stereonet9 and identification of the main families of discontinuities, because the main determinants of failure modes in rock masses are these structures. To do so, seven slopes were selected, with evidence of instability, which were subjected to a series of field studies to obtain the parameters necessary to reach the minimum safety factor. In this way situations were simulated eight 45 ° intervals with mining advance, that in three of them were obtained satisfactory results, given the expectation of work. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07-08 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://periodicos.ufsm.br/remoa/article/view/18716 10.5902/2236130818716 |
url |
http://periodicos.ufsm.br/remoa/article/view/18716 |
identifier_str_mv |
10.5902/2236130818716 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://periodicos.ufsm.br/remoa/article/view/18716/pdf |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Revista Monografias Ambientais info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 Revista Monografias Ambientais |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Monografias Ambientais; REMOA, V.14, 2015, ESPECIAL EDITION: TECNOLOGIA EM MINERAÇÃO – UNIPAMPA – CAMPUS DE CAÇAPAVA DO SUL – RS; 98-115 Revista Monografias Ambientais; REMOA, V. 14, 2015, EDIÇÃO ESPECIAL: TECNOLOGIA EM MINERAÇÃO – UNIPAMPA – CAMPUS DE CAÇAPAVA DO SUL – RS; 98-115 2236-1308 2236-1308 reponame:Revista Monografias Ambientais instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Revista Monografias Ambientais |
collection |
Revista Monografias Ambientais |
repository.name.fl_str_mv |
Revista Monografias Ambientais - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||remoa.ufsm@gmail.com |
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1799950553686474752 |