Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jappgeo.2018.11.017 http://hdl.handle.net/11449/187185 |
Resumo: | Every year, especially in summer, Brazil suffers from floods and landslides triggered by intense rainfall. These landslides are responsible for many fatalities and material losses that greatly affect the local population. The municipality of Campos do Jordão, in São Paulo state, presents such a history of mass movements that have resulted in fatalities and financial losses. A map of the municipality's risk assessment shows that about 32% of the municipality's population lives in risky areas. For this reason, Campos do Jordão is currently one of the pilot areas being used in studies for understanding landslides and mitigation techniques. In this context, this paper presents the results of an integration of geophysical surveys of, and geotechnical information on, the area. The geophysical methods applied were electrical resistivity, induced polarization, and frequency-domain electromagnetics. The geotechnical data included standard penetration test soundings and soil characterization (using particle density and X-ray fluorescence methods). The main contribution of this work is to present results from the joint application of these methodologies. Results from one of the critical areas, where a school had suffered the impact of a mass movement, indicated the displacement and burial of the retaining wall, which was built in 2002, as well as the shape of the movement, which affected the foundations of the school. It was also possible to determine the critical geological structures involved in the slope dislocation, and the potential problems with the school's foundations. The combined application of geophysical and geotechnical methods to landslide research is not very common, and so this study aimed to provide a field-based example to demonstrate the potential utility of such an integrated approach. The aim was also to foster collaboration with studies of mass movements in Brazil and help create methodologies for investigating and understanding the phenomenon. |
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Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, BrazilCampos do Jordão, São Paulo State – BrazilElectrical methodElectromagnetic methodGeotechnical surveysMass movementsSoil characterizationEvery year, especially in summer, Brazil suffers from floods and landslides triggered by intense rainfall. These landslides are responsible for many fatalities and material losses that greatly affect the local population. The municipality of Campos do Jordão, in São Paulo state, presents such a history of mass movements that have resulted in fatalities and financial losses. A map of the municipality's risk assessment shows that about 32% of the municipality's population lives in risky areas. For this reason, Campos do Jordão is currently one of the pilot areas being used in studies for understanding landslides and mitigation techniques. In this context, this paper presents the results of an integration of geophysical surveys of, and geotechnical information on, the area. The geophysical methods applied were electrical resistivity, induced polarization, and frequency-domain electromagnetics. The geotechnical data included standard penetration test soundings and soil characterization (using particle density and X-ray fluorescence methods). The main contribution of this work is to present results from the joint application of these methodologies. Results from one of the critical areas, where a school had suffered the impact of a mass movement, indicated the displacement and burial of the retaining wall, which was built in 2002, as well as the shape of the movement, which affected the foundations of the school. It was also possible to determine the critical geological structures involved in the slope dislocation, and the potential problems with the school's foundations. The combined application of geophysical and geotechnical methods to landslide research is not very common, and so this study aimed to provide a field-based example to demonstrate the potential utility of such an integrated approach. The aim was also to foster collaboration with studies of mass movements in Brazil and help create methodologies for investigating and understanding the phenomenon.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)CEMADEN - National Center for Monitoring and Early Warning of Natural Disasters General Coordination of Research and DevelopmentUniversidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Instituto de Ciência e Tecnologia Departamento de Engenharia AmbientalSalesian University Center of São Paulo – UNISAL, São Joaquim UnitUniversidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Instituto de Ciência e Tecnologia Departamento de Engenharia AmbientalCNPq: 300538/2017-0CNPq: 300610/2017-3CNPq: 371824/2017-6CNPq: 402240/2012-0General Coordination of Research and DevelopmentUniversidade Estadual Paulista (Unesp)Salesian University Center of São Paulo – UNISALBortolozo, Cassiano AntonioMotta, Mariana Ferreira BenessiutiAndrade, Marcio Roberto Magalhães deLavalle, Laura Vanessa AraqueMendes, Rodolfo MoredaSimões, Silvio Jorge Coelho [UNESP]Mendes, Tatiana Sussel Gonçalves [UNESP]Pampuch, Luana Albertani [UNESP]2019-10-06T15:28:03Z2019-10-06T15:28:03Z2019-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-14http://dx.doi.org/10.1016/j.jappgeo.2018.11.017Journal of Applied Geophysics, v. 161, p. 1-14.0926-9851http://hdl.handle.net/11449/18718510.1016/j.jappgeo.2018.11.0172-s2.0-85058679066Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Applied Geophysicsinfo:eu-repo/semantics/openAccess2021-10-23T16:30:41Zoai:repositorio.unesp.br:11449/187185Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T16:30:41Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil |
title |
Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil |
spellingShingle |
Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil Bortolozo, Cassiano Antonio Campos do Jordão, São Paulo State – Brazil Electrical method Electromagnetic method Geotechnical surveys Mass movements Soil characterization |
title_short |
Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil |
title_full |
Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil |
title_fullStr |
Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil |
title_full_unstemmed |
Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil |
title_sort |
Combined analysis of electrical and electromagnetic methods with geotechnical soundings and soil characterization as applied to a landslide study in Campos do Jordão City, Brazil |
author |
Bortolozo, Cassiano Antonio |
author_facet |
Bortolozo, Cassiano Antonio Motta, Mariana Ferreira Benessiuti Andrade, Marcio Roberto Magalhães de Lavalle, Laura Vanessa Araque Mendes, Rodolfo Moreda Simões, Silvio Jorge Coelho [UNESP] Mendes, Tatiana Sussel Gonçalves [UNESP] Pampuch, Luana Albertani [UNESP] |
author_role |
author |
author2 |
Motta, Mariana Ferreira Benessiuti Andrade, Marcio Roberto Magalhães de Lavalle, Laura Vanessa Araque Mendes, Rodolfo Moreda Simões, Silvio Jorge Coelho [UNESP] Mendes, Tatiana Sussel Gonçalves [UNESP] Pampuch, Luana Albertani [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
General Coordination of Research and Development Universidade Estadual Paulista (Unesp) Salesian University Center of São Paulo – UNISAL |
dc.contributor.author.fl_str_mv |
Bortolozo, Cassiano Antonio Motta, Mariana Ferreira Benessiuti Andrade, Marcio Roberto Magalhães de Lavalle, Laura Vanessa Araque Mendes, Rodolfo Moreda Simões, Silvio Jorge Coelho [UNESP] Mendes, Tatiana Sussel Gonçalves [UNESP] Pampuch, Luana Albertani [UNESP] |
dc.subject.por.fl_str_mv |
Campos do Jordão, São Paulo State – Brazil Electrical method Electromagnetic method Geotechnical surveys Mass movements Soil characterization |
topic |
Campos do Jordão, São Paulo State – Brazil Electrical method Electromagnetic method Geotechnical surveys Mass movements Soil characterization |
description |
Every year, especially in summer, Brazil suffers from floods and landslides triggered by intense rainfall. These landslides are responsible for many fatalities and material losses that greatly affect the local population. The municipality of Campos do Jordão, in São Paulo state, presents such a history of mass movements that have resulted in fatalities and financial losses. A map of the municipality's risk assessment shows that about 32% of the municipality's population lives in risky areas. For this reason, Campos do Jordão is currently one of the pilot areas being used in studies for understanding landslides and mitigation techniques. In this context, this paper presents the results of an integration of geophysical surveys of, and geotechnical information on, the area. The geophysical methods applied were electrical resistivity, induced polarization, and frequency-domain electromagnetics. The geotechnical data included standard penetration test soundings and soil characterization (using particle density and X-ray fluorescence methods). The main contribution of this work is to present results from the joint application of these methodologies. Results from one of the critical areas, where a school had suffered the impact of a mass movement, indicated the displacement and burial of the retaining wall, which was built in 2002, as well as the shape of the movement, which affected the foundations of the school. It was also possible to determine the critical geological structures involved in the slope dislocation, and the potential problems with the school's foundations. The combined application of geophysical and geotechnical methods to landslide research is not very common, and so this study aimed to provide a field-based example to demonstrate the potential utility of such an integrated approach. The aim was also to foster collaboration with studies of mass movements in Brazil and help create methodologies for investigating and understanding the phenomenon. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:28:03Z 2019-10-06T15:28:03Z 2019-02-01 |
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.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jappgeo.2018.11.017 Journal of Applied Geophysics, v. 161, p. 1-14. 0926-9851 http://hdl.handle.net/11449/187185 10.1016/j.jappgeo.2018.11.017 2-s2.0-85058679066 |
url |
http://dx.doi.org/10.1016/j.jappgeo.2018.11.017 http://hdl.handle.net/11449/187185 |
identifier_str_mv |
Journal of Applied Geophysics, v. 161, p. 1-14. 0926-9851 10.1016/j.jappgeo.2018.11.017 2-s2.0-85058679066 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Applied Geophysics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-14 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1803045973457371136 |