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dc.contributor.authorWang, Peisen
dc.contributor.authorDing, Hongyan
dc.contributor.authorZhou, Jialin
dc.contributor.authorHu, Wenjun
dc.contributor.authorGu, Xuechen
dc.contributor.authorOh, Erwin
dc.date.accessioned2020-09-24T06:17:56Z
dc.date.available2020-09-24T06:17:56Z
dc.date.issued2020
dc.identifier.issn1687-8086
dc.identifier.doi10.1155/2020/8814257
dc.identifier.urihttp://hdl.handle.net/10072/397904
dc.description.abstractThis study investigated the compressive behaviour of super-long pile foundations with large diameters. Three 52 m, 73 m, and 83 m long piles with a diameter of 1500 mm, 1500 mm, and 1800 mm were cast and tested, respectively. Given that large loading was required, an improved compressive static load test was introduced, and the load transfer mechanism, shaft resistance development, and distribution were analysed. This study found that the transferred load decreased along the pile during each applied load, but the gradients were different. For most layers, when increasing the load, the shaft resistance developed in the upper layers first, while the shaft resistance from the lower part did not always fully develop. Moreover, the "mutual compensation"phenomenon was discovered, which was when the shaft softening occurred from one soil layer, the shaft hardening of the other soil would occur simultaneously. Under consideration of the soil layer differences around these piles, it was recommended that shaft and base grouting should be applied on 52 m and 73 m piles, while only shaft grouting should be applied on the 83 m pile. For this longest pile design, whose toe resistance was discovered to be very small, increasing the pile length was not appropriate; thus, it was preferable to increase the pile diameter to increase the ultimate bearing capacity.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherHindawi
dc.relation.ispartofjournalAdvances in Civil Engineering
dc.relation.ispartofvolume2020
dc.subject.fieldofresearchCivil engineering
dc.subject.fieldofresearchcode4005
dc.subject.keywordsScience & Technology
dc.subject.keywordsConstruction & Building Technology
dc.subject.keywordsEngineering
dc.titleField Tests of Super-Long and Large-Diameter Drilled Shaft Pile Foundations
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationWang, P; Ding, H; Zhou, J; Hu, W; Gu, X; Oh, E, Field Tests of Super-Long and Large-Diameter Drilled Shaft Pile Foundations, Advances in Civil Engineering, 2020, 2020
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.date.updated2020-09-24T06:15:34Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2020 Peisen Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorOh, Erwin


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