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Article: Base capacity of open-ended steel pipe piles in sand

TitleBase capacity of open-ended steel pipe piles in sand
Authors
Issue Date2012
Citation
Journal of Geotechnical and Geoenvironmental Engineering, 2012, v. 138 n. 9, p. 1116-1128 How to Cite?
AbstractThis paper presents a new method for estimating the base capacity of open-ended steel pipe piles in sand, a difficult problem involving great uncertainty in pile foundation design. The method, referred to as the Hong Kong University (HKU) method, is based on the cone penetration test (CPT), and takes into consideration the mechanisms of annulus and plug resistance mobilization. In this method the annulus resistance is properly linked to the ratio of the pile length to the diameter-a key factor reflecting the influence of pile embedment-whereas the plug resistance is related to the plug length ratio, which reflects the degree of soil plugging in a practical yet rational way. The cone tip resistance is averaged over a zone in the vicinity of the pile base by taking into account the failure mechanism of the piles in sand, the condition of pile embedment (i.e., full or partial embedment), and the effect of soil compressibility. The predictive performance of the new method is assessed against a number of well-documented field tests including two fully instrumented large-diameter offshore piles, and through comparisons with major CPT-based methods in current engineering practice. The assessment indicates that the HKU method has attractive capabilities and advantages that render it a promising option. ©2012 American Society of Civil Engineers.
Persistent Identifierhttp://hdl.handle.net/10722/163835
ISSN
2015 Impact Factor: 1.696
2015 SCImago Journal Rankings: 2.344
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYu, Fen_US
dc.contributor.authorYang, Jen_US
dc.date.accessioned2012-09-20T07:52:25Z-
dc.date.available2012-09-20T07:52:25Z-
dc.date.issued2012en_US
dc.identifier.citationJournal of Geotechnical and Geoenvironmental Engineering, 2012, v. 138 n. 9, p. 1116-1128en_US
dc.identifier.issn1090-0241-
dc.identifier.issn10900241-
dc.identifier.urihttp://hdl.handle.net/10722/163835-
dc.description.abstractThis paper presents a new method for estimating the base capacity of open-ended steel pipe piles in sand, a difficult problem involving great uncertainty in pile foundation design. The method, referred to as the Hong Kong University (HKU) method, is based on the cone penetration test (CPT), and takes into consideration the mechanisms of annulus and plug resistance mobilization. In this method the annulus resistance is properly linked to the ratio of the pile length to the diameter-a key factor reflecting the influence of pile embedment-whereas the plug resistance is related to the plug length ratio, which reflects the degree of soil plugging in a practical yet rational way. The cone tip resistance is averaged over a zone in the vicinity of the pile base by taking into account the failure mechanism of the piles in sand, the condition of pile embedment (i.e., full or partial embedment), and the effect of soil compressibility. The predictive performance of the new method is assessed against a number of well-documented field tests including two fully instrumented large-diameter offshore piles, and through comparisons with major CPT-based methods in current engineering practice. The assessment indicates that the HKU method has attractive capabilities and advantages that render it a promising option. ©2012 American Society of Civil Engineers.-
dc.languageengen_US
dc.relation.ispartofJournal of Geotechnical and Geoenvironmental Engineeringen_US
dc.titleBase capacity of open-ended steel pipe piles in sanden_US
dc.typeArticleen_US
dc.identifier.emailYang, J: junyang@hkucc.hku.hken_US
dc.identifier.authorityYang, J=rp00201en_US
dc.identifier.doi10.1061/(ASCE)GT.1943-5606.0000667-
dc.identifier.scopuseid_2-s2.0-84879488064-
dc.identifier.hkuros206366en_US
dc.identifier.volume138en_US
dc.identifier.issue9en_US
dc.identifier.spage1116en_US
dc.identifier.epage1128en_US
dc.identifier.eissn1943-5606-
dc.identifier.isiWOS:000312704000006-

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