Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe
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.2019.01.010 http://hdl.handle.net/11449/188977 |
Resumo: | Leak noise correlators are commonly used to detect and locate leaks in buried water pipes. They use the cross-correlation function between leak noise signals measured using hydrophones or accelerometers placed on the pipe either side of the leak. The efficacy of a correlator is dependent upon knowledge of the speed at which the leak noise propagates along the pipe as well as how much it attenuates with distance. The leak noise is carried in a predominantly fluid-borne wave in the pipe, which is heavily influenced by the pipe and soil properties. Although the pipe properties can be determined relatively easily, estimation of the soil properties surrounding the pipe is more problematic. It is desirable to have an accurate estimate of the soil properties, so that current models can be developed and used to improve understanding of leak noise propagation and hence leak detection capabilities. In this paper a novel approach to determining the bulk and shear moduli of the soil from measurements of the predominantly fluid-borne wave in a buried plastic pipe, is described. The measured data are compared with corresponding data predicted from a model, and the soil properties are determined using an optimization algorithm. The method is applied to two different sites, one in the UK, where the soil properties surrounding the pipe are representative of sandy soil, and one in Brazil, where the surrounding soil has properties that are representative of clay soil. It is found that the bulk and shear modulus can be estimated in the pipe buried in sandy soil, but in the clay soil it is only possible to estimate the shear modulus. |
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Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipeFluid-pipe-soil interactionOptimizationSoil propertiesWater leak detectionLeak noise correlators are commonly used to detect and locate leaks in buried water pipes. They use the cross-correlation function between leak noise signals measured using hydrophones or accelerometers placed on the pipe either side of the leak. The efficacy of a correlator is dependent upon knowledge of the speed at which the leak noise propagates along the pipe as well as how much it attenuates with distance. The leak noise is carried in a predominantly fluid-borne wave in the pipe, which is heavily influenced by the pipe and soil properties. Although the pipe properties can be determined relatively easily, estimation of the soil properties surrounding the pipe is more problematic. It is desirable to have an accurate estimate of the soil properties, so that current models can be developed and used to improve understanding of leak noise propagation and hence leak detection capabilities. In this paper a novel approach to determining the bulk and shear moduli of the soil from measurements of the predominantly fluid-borne wave in a buried plastic pipe, is described. The measured data are compared with corresponding data predicted from a model, and the soil properties are determined using an optimization algorithm. The method is applied to two different sites, one in the UK, where the soil properties surrounding the pipe are representative of sandy soil, and one in Brazil, where the surrounding soil has properties that are representative of clay soil. It is found that the bulk and shear modulus can be estimated in the pipe buried in sandy soil, but in the clay soil it is only possible to estimate the shear modulus.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Mathematics UTFPR - Federal University of Technology of Paraná, Cornélio ProcópioDepartment of Mechanical Engineering UNESP - São Paulo State University, Ilha SolteiraInstitute of Sound and Vibration Research University of Southampton HighfieldDepartment of Biosystems Engineering UNESP - São Paulo State University, TupãDepartment of Mechanical Engineering UNESP - São Paulo State University, Ilha SolteiraDepartment of Biosystems Engineering UNESP - São Paulo State University, TupãFAPESP: 2013/50412-3FAPESP: 2017/14432-0UTFPR - Federal University of Technology of ParanáUniversidade Estadual Paulista (Unesp)HighfieldScussel, O. [UNESP]Brennan, M. J. [UNESP]Muggleton, J. M.Almeida, F. C.L. [UNESP]Paschoalini, A. T. [UNESP]2019-10-06T16:25:46Z2019-10-06T16:25:46Z2019-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article237-246http://dx.doi.org/10.1016/j.jappgeo.2019.01.010Journal of Applied Geophysics, v. 164, p. 237-246.0926-9851http://hdl.handle.net/11449/18897710.1016/j.jappgeo.2019.01.0102-s2.0-85064274413Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Applied Geophysicsinfo:eu-repo/semantics/openAccess2024-07-04T20:06:15Zoai:repositorio.unesp.br:11449/188977Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:36:03.627078Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe |
title |
Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe |
spellingShingle |
Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe Scussel, O. [UNESP] Fluid-pipe-soil interaction Optimization Soil properties Water leak detection |
title_short |
Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe |
title_full |
Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe |
title_fullStr |
Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe |
title_full_unstemmed |
Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe |
title_sort |
Estimation of the bulk and shear moduli of soil surrounding a plastic water pipe using measurements of the predominantly fluid wave in the pipe |
author |
Scussel, O. [UNESP] |
author_facet |
Scussel, O. [UNESP] Brennan, M. J. [UNESP] Muggleton, J. M. Almeida, F. C.L. [UNESP] Paschoalini, A. T. [UNESP] |
author_role |
author |
author2 |
Brennan, M. J. [UNESP] Muggleton, J. M. Almeida, F. C.L. [UNESP] Paschoalini, A. T. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
UTFPR - Federal University of Technology of Paraná Universidade Estadual Paulista (Unesp) Highfield |
dc.contributor.author.fl_str_mv |
Scussel, O. [UNESP] Brennan, M. J. [UNESP] Muggleton, J. M. Almeida, F. C.L. [UNESP] Paschoalini, A. T. [UNESP] |
dc.subject.por.fl_str_mv |
Fluid-pipe-soil interaction Optimization Soil properties Water leak detection |
topic |
Fluid-pipe-soil interaction Optimization Soil properties Water leak detection |
description |
Leak noise correlators are commonly used to detect and locate leaks in buried water pipes. They use the cross-correlation function between leak noise signals measured using hydrophones or accelerometers placed on the pipe either side of the leak. The efficacy of a correlator is dependent upon knowledge of the speed at which the leak noise propagates along the pipe as well as how much it attenuates with distance. The leak noise is carried in a predominantly fluid-borne wave in the pipe, which is heavily influenced by the pipe and soil properties. Although the pipe properties can be determined relatively easily, estimation of the soil properties surrounding the pipe is more problematic. It is desirable to have an accurate estimate of the soil properties, so that current models can be developed and used to improve understanding of leak noise propagation and hence leak detection capabilities. In this paper a novel approach to determining the bulk and shear moduli of the soil from measurements of the predominantly fluid-borne wave in a buried plastic pipe, is described. The measured data are compared with corresponding data predicted from a model, and the soil properties are determined using an optimization algorithm. The method is applied to two different sites, one in the UK, where the soil properties surrounding the pipe are representative of sandy soil, and one in Brazil, where the surrounding soil has properties that are representative of clay soil. It is found that the bulk and shear modulus can be estimated in the pipe buried in sandy soil, but in the clay soil it is only possible to estimate the shear modulus. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:25:46Z 2019-10-06T16:25:46Z 2019-05-01 |
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.2019.01.010 Journal of Applied Geophysics, v. 164, p. 237-246. 0926-9851 http://hdl.handle.net/11449/188977 10.1016/j.jappgeo.2019.01.010 2-s2.0-85064274413 |
url |
http://dx.doi.org/10.1016/j.jappgeo.2019.01.010 http://hdl.handle.net/11449/188977 |
identifier_str_mv |
Journal of Applied Geophysics, v. 164, p. 237-246. 0926-9851 10.1016/j.jappgeo.2019.01.010 2-s2.0-85064274413 |
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 |
237-246 |
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_ |
1808129094374653952 |