Development of a new TDR probe for determining soil water content and dry density
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | |
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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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:29462024-08-06T00:01:47.163820Repositório 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 |
|
_version_ |
1808129574235537408 |