Effect of surface roughness characteristics on the uplift capacity of piles: A physical modelling study

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dc.authoridTolun, Mustafa/0000-0002-2073-8796
dc.authoridEmirler, Buse/0000-0002-0234-7177
dc.authoridErtugrul, Ozgur Lutfi/0000-0002-1270-3649
dc.contributor.authorTolun, Mustafa
dc.contributor.authorEmirler, Buse
dc.contributor.authorErtugrul, Ozgur L.
dc.contributor.authorYildiz, Abdulazim
dc.date.accessioned2025-01-06T17:37:01Z
dc.date.available2025-01-06T17:37:01Z
dc.date.issued2023
dc.description.abstractPile surface roughness is one of the significant variables affecting the load-bearing capacity of piles. Especially for piles subjected to uplift loads, this parameter can be considered as the main factor that affects the uplift capacity since there is no contribution originating from the pile tip. According to limited previous research, a pile surface can be evaluated as smooth if pile surface roughness parameter (R-n) is less than 0.02, whereas the pile surface is considered completely rough when R-n value is greater than 0.10. This paper, therefore, is aimed to investigate the validity and effectiveness of the numerical limits previously suggested for R-n and intends to determine the relationship between R-n and soil-pile friction angle. For this purpose, laboratory model tests were performed on 12 small-scale pile models embedded in cohesionless soils having varying densities (D-r=25%, 50%, and 75%). Pile surfaces were specially textured to produce different surface roughness values from 0 to 2. Test results indicated that increasing the relative density of cohesionless soil and the pile surface roughness had a considerable contribution to the uplift capacity and soil-pile friction angle. Furthermore, some typical values of R-n like 0, 0.04, and 0.10 were found to be critical for pile uplift behaviour and capacity, and R-n value should be accepted as zero to consider the pile surface as completely smooth.
dc.identifier.doi10.1080/1064119X.2022.2110025
dc.identifier.endpage947
dc.identifier.issn1064-119X
dc.identifier.issn1521-0618
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85137186406
dc.identifier.scopusqualityQ1
dc.identifier.startpage935
dc.identifier.urihttps://doi.org/10.1080/1064119X.2022.2110025
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2084
dc.identifier.volume41
dc.identifier.wosWOS:000849083000001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Inc
dc.relation.ispartofMarine Georesources & Geotechnology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectCohesionless soil
dc.subjectlaboratory model test
dc.subjectpile surface roughness
dc.subjectsoil-pile friction angle
dc.subjectuplift capacity
dc.titleEffect of surface roughness characteristics on the uplift capacity of piles: A physical modelling study
dc.typeArticle

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