Settlement of bored piles with expander body system in lateritic soils

Detalhes bibliográficos
Autor(a) principal: Monteiro,Fernando Feitosa
Data de Publicação: 2021
Outros Autores: Cunha,Renato Pinto da, Aguiar,Marcos Fábio Porto de, Silva,Carlos Medeiros
Tipo de documento: Artigo
Idioma: eng
Título da fonte: REM - International Engineering Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2021000300309
Resumo: Abstract The Expander Body pile (EB) is a combination of a cast-in-situ pile method with an inflated, pump-grouted tip. The EB system's pioneering conjunction with the conventional drilling pile technique has improved work load, foundation security, cost reductions and abrupt displacements in lateritic, porous, unsaturated soils. The aim of this article is to analyze settlement estimates of bored piles equipped with the Expander Body System on tropical lateritic soil, using a deformability modulus obtained from laboratory and field tests. The piles were subjected to compression and uplift load tests. In addition, the estimates of the pile settlement are compared with the measured values, and the findings are discussed. The results strongly support that PMT and SPT tests present the optimal ratios between the measured and estimated settlements for both bored piles and bored piles with the Expander Body System. It can also be observed that CPT tests presented reasonable estimates for tensioned piles. Ultimately, it is verified that straightforward elastic models for the settlement assessment of bored piles can be used reliably in practice for piles equipped with the Expander Body System on tropical unsaturated soils.
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spelling Settlement of bored piles with expander body system in lateritic soilssettlementexpander bodybored pileslateritic soilsload testdisplacementAbstract The Expander Body pile (EB) is a combination of a cast-in-situ pile method with an inflated, pump-grouted tip. The EB system's pioneering conjunction with the conventional drilling pile technique has improved work load, foundation security, cost reductions and abrupt displacements in lateritic, porous, unsaturated soils. The aim of this article is to analyze settlement estimates of bored piles equipped with the Expander Body System on tropical lateritic soil, using a deformability modulus obtained from laboratory and field tests. The piles were subjected to compression and uplift load tests. In addition, the estimates of the pile settlement are compared with the measured values, and the findings are discussed. The results strongly support that PMT and SPT tests present the optimal ratios between the measured and estimated settlements for both bored piles and bored piles with the Expander Body System. It can also be observed that CPT tests presented reasonable estimates for tensioned piles. Ultimately, it is verified that straightforward elastic models for the settlement assessment of bored piles can be used reliably in practice for piles equipped with the Expander Body System on tropical unsaturated soils.Fundação Gorceix2021-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2021000300309REM - International Engineering Journal v.74 n.3 2021reponame:REM - International Engineering Journalinstname:Fundação Gorceix (FG)instacron:FG10.1590/0370-44672020740057info:eu-repo/semantics/openAccessMonteiro,Fernando FeitosaCunha,Renato Pinto daAguiar,Marcos Fábio Porto deSilva,Carlos Medeiroseng2021-07-19T00:00:00Zoai:scielo:S2448-167X2021000300309Revistahttps://www.rem.com.br/?lang=pt-brPRIhttps://old.scielo.br/oai/scielo-oai.php||editor@rem.com.br2448-167X2448-167Xopendoar:2021-07-19T00:00REM - International Engineering Journal - Fundação Gorceix (FG)false
dc.title.none.fl_str_mv Settlement of bored piles with expander body system in lateritic soils
title Settlement of bored piles with expander body system in lateritic soils
spellingShingle Settlement of bored piles with expander body system in lateritic soils
Monteiro,Fernando Feitosa
settlement
expander body
bored piles
lateritic soils
load test
displacement
title_short Settlement of bored piles with expander body system in lateritic soils
title_full Settlement of bored piles with expander body system in lateritic soils
title_fullStr Settlement of bored piles with expander body system in lateritic soils
title_full_unstemmed Settlement of bored piles with expander body system in lateritic soils
title_sort Settlement of bored piles with expander body system in lateritic soils
author Monteiro,Fernando Feitosa
author_facet Monteiro,Fernando Feitosa
Cunha,Renato Pinto da
Aguiar,Marcos Fábio Porto de
Silva,Carlos Medeiros
author_role author
author2 Cunha,Renato Pinto da
Aguiar,Marcos Fábio Porto de
Silva,Carlos Medeiros
author2_role author
author
author
dc.contributor.author.fl_str_mv Monteiro,Fernando Feitosa
Cunha,Renato Pinto da
Aguiar,Marcos Fábio Porto de
Silva,Carlos Medeiros
dc.subject.por.fl_str_mv settlement
expander body
bored piles
lateritic soils
load test
displacement
topic settlement
expander body
bored piles
lateritic soils
load test
displacement
description Abstract The Expander Body pile (EB) is a combination of a cast-in-situ pile method with an inflated, pump-grouted tip. The EB system's pioneering conjunction with the conventional drilling pile technique has improved work load, foundation security, cost reductions and abrupt displacements in lateritic, porous, unsaturated soils. The aim of this article is to analyze settlement estimates of bored piles equipped with the Expander Body System on tropical lateritic soil, using a deformability modulus obtained from laboratory and field tests. The piles were subjected to compression and uplift load tests. In addition, the estimates of the pile settlement are compared with the measured values, and the findings are discussed. The results strongly support that PMT and SPT tests present the optimal ratios between the measured and estimated settlements for both bored piles and bored piles with the Expander Body System. It can also be observed that CPT tests presented reasonable estimates for tensioned piles. Ultimately, it is verified that straightforward elastic models for the settlement assessment of bored piles can be used reliably in practice for piles equipped with the Expander Body System on tropical unsaturated soils.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2021000300309
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2021000300309
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0370-44672020740057
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Gorceix
publisher.none.fl_str_mv Fundação Gorceix
dc.source.none.fl_str_mv REM - International Engineering Journal v.74 n.3 2021
reponame:REM - International Engineering Journal
instname:Fundação Gorceix (FG)
instacron:FG
instname_str Fundação Gorceix (FG)
instacron_str FG
institution FG
reponame_str REM - International Engineering Journal
collection REM - International Engineering Journal
repository.name.fl_str_mv REM - International Engineering Journal - Fundação Gorceix (FG)
repository.mail.fl_str_mv ||editor@rem.com.br
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