Rotation speed analysis in SPT-T test by type of soil
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/220807 |
Resumo: | One of the main purposes of the Standard Penetration Test (SPT) is related to prediction of load capacity of foundations. In addition, the SPT-T was proposed using a torquemeter device in order to break the adhesion of soil sampler after the end of each SPT. This measurement can be used to calculate the amount of lateral friction improving foundations design. The rotation speed is analyzed to set its variation range and its influence on the torque measurement is assessed based on soil type. First, a theoretical study was conducted. Secondly, analysis were performed with data obtained from a system that simultaneously enabled the acquisition of torque measurement and its corresponding rotation speed resulting in 426 curves in seven sites with different geotechnical characteristics. The analysis of rotation degrees had considered the geotechnical profile of each site and then they were faced with N; maximum torque (Tmax); residual torque (Tres); Tmax/N ratio; and finally type of soil. A statistical analysis was done and then in conclusion this study will improve the SPT-T implementation procedure. |
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Rotation speed analysis in SPT-T test by type of soilOne of the main purposes of the Standard Penetration Test (SPT) is related to prediction of load capacity of foundations. In addition, the SPT-T was proposed using a torquemeter device in order to break the adhesion of soil sampler after the end of each SPT. This measurement can be used to calculate the amount of lateral friction improving foundations design. The rotation speed is analyzed to set its variation range and its influence on the torque measurement is assessed based on soil type. First, a theoretical study was conducted. Secondly, analysis were performed with data obtained from a system that simultaneously enabled the acquisition of torque measurement and its corresponding rotation speed resulting in 426 curves in seven sites with different geotechnical characteristics. The analysis of rotation degrees had considered the geotechnical profile of each site and then they were faced with N; maximum torque (Tmax); residual torque (Tres); Tmax/N ratio; and finally type of soil. A statistical analysis was done and then in conclusion this study will improve the SPT-T implementation procedure.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ. Estadual Paulista Depart. of Civil and Environmental EngineeringUniv. Estadual Paulista Depart. of Civil and Environmental EngineeringFAPESP: 05/01953-5FAPESP: 13/26750-6Universidade Estadual Paulista (UNESP)Nuñez, R. R. [UNESP]Piovan, T. T.C. [UNESP]Peixoto, A. S.P. [UNESP]2022-04-28T19:05:43Z2022-04-28T19:05:43Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject345-349Proceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016, v. 1, p. 345-349.http://hdl.handle.net/11449/2208072-s2.0-85015147847Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016info:eu-repo/semantics/openAccess2022-04-28T19:05:44Zoai:repositorio.unesp.br:11449/220807Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:34:12.557687Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Rotation speed analysis in SPT-T test by type of soil |
title |
Rotation speed analysis in SPT-T test by type of soil |
spellingShingle |
Rotation speed analysis in SPT-T test by type of soil Nuñez, R. R. [UNESP] |
title_short |
Rotation speed analysis in SPT-T test by type of soil |
title_full |
Rotation speed analysis in SPT-T test by type of soil |
title_fullStr |
Rotation speed analysis in SPT-T test by type of soil |
title_full_unstemmed |
Rotation speed analysis in SPT-T test by type of soil |
title_sort |
Rotation speed analysis in SPT-T test by type of soil |
author |
Nuñez, R. R. [UNESP] |
author_facet |
Nuñez, R. R. [UNESP] Piovan, T. T.C. [UNESP] Peixoto, A. S.P. [UNESP] |
author_role |
author |
author2 |
Piovan, T. T.C. [UNESP] Peixoto, A. S.P. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Nuñez, R. R. [UNESP] Piovan, T. T.C. [UNESP] Peixoto, A. S.P. [UNESP] |
description |
One of the main purposes of the Standard Penetration Test (SPT) is related to prediction of load capacity of foundations. In addition, the SPT-T was proposed using a torquemeter device in order to break the adhesion of soil sampler after the end of each SPT. This measurement can be used to calculate the amount of lateral friction improving foundations design. The rotation speed is analyzed to set its variation range and its influence on the torque measurement is assessed based on soil type. First, a theoretical study was conducted. Secondly, analysis were performed with data obtained from a system that simultaneously enabled the acquisition of torque measurement and its corresponding rotation speed resulting in 426 curves in seven sites with different geotechnical characteristics. The analysis of rotation degrees had considered the geotechnical profile of each site and then they were faced with N; maximum torque (Tmax); residual torque (Tres); Tmax/N ratio; and finally type of soil. A statistical analysis was done and then in conclusion this study will improve the SPT-T implementation procedure. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01 2022-04-28T19:05:43Z 2022-04-28T19:05:43Z |
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 |
Proceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016, v. 1, p. 345-349. http://hdl.handle.net/11449/220807 2-s2.0-85015147847 |
identifier_str_mv |
Proceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016, v. 1, p. 345-349. 2-s2.0-85015147847 |
url |
http://hdl.handle.net/11449/220807 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
345-349 |
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_ |
1808128949509685248 |