Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners
The disposal of solid waste can create environmental problems, in addition to the potential risk of instability even in planned geotechnical works, such as provisions in stacks or high ends of the landfill, because they represent mere adjustments in civil engineering works. The Leme city, SP, genera...
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Universidade de São Paulo
2013-03-01
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doaj-7708fcd9bc3a4afe965d4028652da95d2020-11-25T03:33:54ZengUniversidade de São PauloGeologia USP. Série Científica1519-874X2013-03-01131253410.5327/Z1519-874X2013000100002Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditionersCarolina Del RoveriFabiano Tomazini da ConceiçãoDiego de Souza SardinhaLetícia Hirata GodoyCésar Augusto MoreiraThe disposal of solid waste can create environmental problems, in addition to the potential risk of instability even in planned geotechnical works, such as provisions in stacks or high ends of the landfill, because they represent mere adjustments in civil engineering works. The Leme city, SP, generates about 35 t/day of municipal waste, that are deposited in a landfill located in the Barro Preto neighborhood. This work conducted a geophysical survey, based on geotechnical instability evidence in area, for analysis of the conditioners that cause on the sides leachate resurgence landfill and its relationship to mass movements and ravines installation in cover soil, with consequent waste exposure. The results indicate horizons of low resistivity connected with resurgence points generated by the organic matter decomposition contained in the waste. Such horizons result in leachate concentration in some places, which, in turn, may lead to loss of cohesion of the materials constituting the residues mass. The results are areas with mass flow by rotational movements, which, together with the surface flow of rainwater, evolves into ravines and exposed residues, preferably at the resurgence point. The leachate flow on the surface affects areas beyond the limits at landfill with direct impact on local agriculture and risk to pedestrians using the highway bordered by the landfill beyond the soil and the local aquifer.http://ppegeo.igc.usp.br/pdf/guspsc/v13n1/02.pdfElectrical resistivityLeachateSeepageMass movementRavine. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Carolina Del Roveri Fabiano Tomazini da Conceição Diego de Souza Sardinha Letícia Hirata Godoy César Augusto Moreira |
spellingShingle |
Carolina Del Roveri Fabiano Tomazini da Conceição Diego de Souza Sardinha Letícia Hirata Godoy César Augusto Moreira Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners Geologia USP. Série Científica Electrical resistivity Leachate Seepage Mass movement Ravine. |
author_facet |
Carolina Del Roveri Fabiano Tomazini da Conceição Diego de Souza Sardinha Letícia Hirata Godoy César Augusto Moreira |
author_sort |
Carolina Del Roveri |
title |
Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners |
title_short |
Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners |
title_full |
Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners |
title_fullStr |
Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners |
title_full_unstemmed |
Geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners |
title_sort |
geophysical characterization in solid waste landfill for evaluation of geotechnical instability conditioners |
publisher |
Universidade de São Paulo |
series |
Geologia USP. Série Científica |
issn |
1519-874X |
publishDate |
2013-03-01 |
description |
The disposal of solid waste can create environmental problems, in addition to the potential risk of instability even in planned geotechnical works, such as provisions in stacks or high ends of the landfill, because they represent mere adjustments in civil engineering works. The Leme city, SP, generates about 35 t/day of municipal waste, that are deposited in a landfill located in the Barro Preto neighborhood. This work conducted a geophysical survey, based on geotechnical instability evidence in area, for analysis of the conditioners that cause on the sides leachate resurgence landfill and its relationship to mass movements and ravines installation in cover soil, with consequent waste exposure. The results indicate horizons of low resistivity connected with resurgence points generated by the organic matter decomposition contained in the waste. Such horizons result in leachate concentration in some places, which, in turn, may lead to loss of cohesion of the materials constituting the residues mass. The results are areas with mass flow by rotational movements, which, together with the surface flow of rainwater, evolves into ravines and exposed residues, preferably at the resurgence point. The leachate flow on the surface affects areas beyond the limits at landfill with direct impact on local agriculture and risk to pedestrians using the highway bordered by the landfill beyond the soil and the local aquifer. |
topic |
Electrical resistivity Leachate Seepage Mass movement Ravine. |
url |
http://ppegeo.igc.usp.br/pdf/guspsc/v13n1/02.pdf |
work_keys_str_mv |
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