Development of a new TDR probe for determining soil water content and dry density

Detalhes bibliográficos
Autor(a) principal: Esquivel, E. R.
Data de Publicação: 2007
Outros Autores: Giacheti, H. L. [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1061/40906(225)18
http://hdl.handle.net/11449/69888
Resumo: A few traditional methods for determining water content in the field are either inaccurate or time consuming. As an alternative, the time domain reflectometry (TDR) technology has been used in the determination of the soil water content for geotechnical applications. This paper presents the preliminary results on the development of a new TDR probe for determining soil water content and dry density at different depths. This new probe is intended to be pushed into the ground using piezocone equipment. Different from the standard TDR probes with straight rods, the new probe consists of two parallel copper stripes coiled around a PVC-steel core. The probe diameter is the same as the standard 10 cm2 piezocone diameter. Through laboratory calibrations, it is possible to establish expressions relating the soil apparent dielectric constant and the bulk electrical conductivity with the gravimetric water content and the dry density. Copyright ASCE 2007.
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spelling Development of a new TDR probe for determining soil water content and dry densityCalibrationElectric conductivityPermittivityReflectometersSoilsTime domain analysisDry densityPiezocone equipmentProbe diameterWater contentA few traditional methods for determining water content in the field are either inaccurate or time consuming. As an alternative, the time domain reflectometry (TDR) technology has been used in the determination of the soil water content for geotechnical applications. This paper presents the preliminary results on the development of a new TDR probe for determining soil water content and dry density at different depths. This new probe is intended to be pushed into the ground using piezocone equipment. Different from the standard TDR probes with straight rods, the new probe consists of two parallel copper stripes coiled around a PVC-steel core. The probe diameter is the same as the standard 10 cm2 piezocone diameter. Through laboratory calibrations, it is possible to establish expressions relating the soil apparent dielectric constant and the bulk electrical conductivity with the gravimetric water content and the dry density. Copyright ASCE 2007.Department of Geotechnical Engineering University of São Paulo, Av. Trabalhador Sao-Carlense 400, 13566-590 Sao Carlos, SPDepartment of Civil Engineering São Paulo State University, P.O. Box 473, 17033-360 Bauru, SPDepartment of Civil Engineering São Paulo State University, P.O. Box 473, 17033-360 Bauru, SPUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Esquivel, E. R.Giacheti, H. L. [UNESP]2014-05-27T11:22:35Z2014-05-27T11:22:35Z2007-09-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject18http://dx.doi.org/10.1061/40906(225)18Geotechnical Special Publication, n. 162, p. 18-, 2007.0895-0563http://hdl.handle.net/11449/6988810.1061/40906(225)182-s2.0-345485542720781618586438933Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGeotechnical Special Publication0,231info:eu-repo/semantics/openAccess2024-06-28T12:57:05Zoai:repositorio.unesp.br:11449/69888Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-28T12:57:05Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Development of a new TDR probe for determining soil water content and dry density
title Development of a new TDR probe for determining soil water content and dry density
spellingShingle Development of a new TDR probe for determining soil water content and dry density
Esquivel, E. R.
Calibration
Electric conductivity
Permittivity
Reflectometers
Soils
Time domain analysis
Dry density
Piezocone equipment
Probe diameter
Water content
title_short Development of a new TDR probe for determining soil water content and dry density
title_full Development of a new TDR probe for determining soil water content and dry density
title_fullStr Development of a new TDR probe for determining soil water content and dry density
title_full_unstemmed Development of a new TDR probe for determining soil water content and dry density
title_sort Development of a new TDR probe for determining soil water content and dry density
author Esquivel, E. R.
author_facet Esquivel, E. R.
Giacheti, H. L. [UNESP]
author_role author
author2 Giacheti, H. L. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Esquivel, E. R.
Giacheti, H. L. [UNESP]
dc.subject.por.fl_str_mv Calibration
Electric conductivity
Permittivity
Reflectometers
Soils
Time domain analysis
Dry density
Piezocone equipment
Probe diameter
Water content
topic Calibration
Electric conductivity
Permittivity
Reflectometers
Soils
Time domain analysis
Dry density
Piezocone equipment
Probe diameter
Water content
description A few traditional methods for determining water content in the field are either inaccurate or time consuming. As an alternative, the time domain reflectometry (TDR) technology has been used in the determination of the soil water content for geotechnical applications. This paper presents the preliminary results on the development of a new TDR probe for determining soil water content and dry density at different depths. This new probe is intended to be pushed into the ground using piezocone equipment. Different from the standard TDR probes with straight rods, the new probe consists of two parallel copper stripes coiled around a PVC-steel core. The probe diameter is the same as the standard 10 cm2 piezocone diameter. Through laboratory calibrations, it is possible to establish expressions relating the soil apparent dielectric constant and the bulk electrical conductivity with the gravimetric water content and the dry density. Copyright ASCE 2007.
publishDate 2007
dc.date.none.fl_str_mv 2007-09-18
2014-05-27T11:22:35Z
2014-05-27T11:22:35Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1061/40906(225)18
Geotechnical Special Publication, n. 162, p. 18-, 2007.
0895-0563
http://hdl.handle.net/11449/69888
10.1061/40906(225)18
2-s2.0-34548554272
0781618586438933
url http://dx.doi.org/10.1061/40906(225)18
http://hdl.handle.net/11449/69888
identifier_str_mv Geotechnical Special Publication, n. 162, p. 18-, 2007.
0895-0563
10.1061/40906(225)18
2-s2.0-34548554272
0781618586438933
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Geotechnical Special Publication
0,231
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 18
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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