GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZIL
This paper presents a risk analysis of mass movements in 16 slopes in the city of Aracaju, capital of the state of Sergipe, Brazil, using a qualitative method. Geotechnical characterization of soils from of slopes selected for analysis of stability was carried using the OptumG2® software developed b...
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Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte
2020-07-01
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Online Access: | http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/10067 |
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doaj-2f894d0c2c2d4b69812e8d4bced19a022021-06-16T19:00:22ZengInstituto Federal de Educação, Ciência e Tecnologia do Rio Grande do NorteHolos1807-16002020-07-014012710.15628/holos.2020.100672519GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZILBelaniza Gaspar Santos Neta0Osvaldo de Freitas Neto1Erinaldo Hilario Cavalcante2Universidade de BrasíliaUniversidade Federal do Rio Grande do NorteUniversidade Federal de SergipeThis paper presents a risk analysis of mass movements in 16 slopes in the city of Aracaju, capital of the state of Sergipe, Brazil, using a qualitative method. Geotechnical characterization of soils from of slopes selected for analysis of stability was carried using the OptumG2® software developed by Optum Computational Engineering using the Strength Reduction Method (SRM) to obtain the safety factor. The aim of this study is to conduct a systematic analysis, associating subjective landslide risk studies with rational studies on slope stability analysis. It was found that 50% of the slopes analyzed exhibited a high or very high degree of risk, justifying the landslide risk management policies in the city. Moreover, stability analyses produced coherent results in terms of slope stability, whereby slopes with high and very high risk were classified as unstable, while the slope deemed to be stable presents medium risk of mass movements.http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/10067risk analysissoil characterizationstability analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Belaniza Gaspar Santos Neta Osvaldo de Freitas Neto Erinaldo Hilario Cavalcante |
spellingShingle |
Belaniza Gaspar Santos Neta Osvaldo de Freitas Neto Erinaldo Hilario Cavalcante GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZIL Holos risk analysis soil characterization stability analysis |
author_facet |
Belaniza Gaspar Santos Neta Osvaldo de Freitas Neto Erinaldo Hilario Cavalcante |
author_sort |
Belaniza Gaspar Santos Neta |
title |
GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZIL |
title_short |
GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZIL |
title_full |
GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZIL |
title_fullStr |
GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZIL |
title_full_unstemmed |
GEOTECHNICAL CHARACTERIZATION AND RISK ANALYSIS OF URBAN SLOPE INSTABILITY IN THE CITY OF ARACAJU - BRAZIL |
title_sort |
geotechnical characterization and risk analysis of urban slope instability in the city of aracaju - brazil |
publisher |
Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte |
series |
Holos |
issn |
1807-1600 |
publishDate |
2020-07-01 |
description |
This paper presents a risk analysis of mass movements in 16 slopes in the city of Aracaju, capital of the state of Sergipe, Brazil, using a qualitative method. Geotechnical characterization of soils from of slopes selected for analysis of stability was carried using the OptumG2® software developed by Optum Computational Engineering using the Strength Reduction Method (SRM) to obtain the safety factor. The aim of this study is to conduct a systematic analysis, associating subjective landslide risk studies with rational studies on slope stability analysis. It was found that 50% of the slopes analyzed exhibited a high or very high degree of risk, justifying the landslide risk management policies in the city. Moreover, stability analyses produced coherent results in terms of slope stability, whereby slopes with high and very high risk were classified as unstable, while the slope deemed to be stable presents medium risk of mass movements. |
topic |
risk analysis soil characterization stability analysis |
url |
http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/10067 |
work_keys_str_mv |
AT belanizagasparsantosneta geotechnicalcharacterizationandriskanalysisofurbanslopeinstabilityinthecityofaracajubrazil AT osvaldodefreitasneto geotechnicalcharacterizationandriskanalysisofurbanslopeinstabilityinthecityofaracajubrazil AT erinaldohilariocavalcante geotechnicalcharacterizationandriskanalysisofurbanslopeinstabilityinthecityofaracajubrazil |
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