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Article: Behaviour of jacked and driven piles in sandy soil

TitleBehaviour of jacked and driven piles in sandy soil
Authors
KeywordsBearing Capacity
Full-Scale Tests
Piles
Residual Soils
Sands
Issue Date2006
PublisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.geotechnique-ice.com
Citation
Geotechnique, 2006, v. 56 n. 4, p. 245-259 How to Cite?
AbstractAs an alternative to conventional dynamic pile installation methods, pile jacking is an environmentally friendly technique that could become more widely accepted. Great concern has arisen over the performance of jacked piles as compared with that of driven piles. This paper describes a comprehensive field study that was aimed at investigating the differences and similarities between the behaviour of jacked H-piles and that of driven H-piles. The instrumented piles, varying in length from 32 to 55 m and having a design capacity of up to 3540 kN, were installed in residual soils whose properties are close to silty sands. The load test results indicate that the shaft resistance of jacked piles is generally suffer and stronger than that of driven piles, but the base resistance of jacked piles is weaker than that of driven piles. At a load level of twice the design capacity, the percentage of pile head load carried by base varies from 2% to 10% for jacked piles, with a mean value of 6%; for driven piles the percentage varies from 6% to 61% with a mean value of 38%. The back-calculated values of the shaft friction coefficient, β, were found to be in a range of 0.25-0.6 for both jacked and driven piles. A correlation was also observed between the ultimate shaft friction and the mean standard penetration test N value (N̄), which suggests that the shaft friction can be taken as 1.5N̄ to 2N̄ (kPa) for both jacked and driven H-piles.
Persistent Identifierhttp://hdl.handle.net/10722/150361
ISSN
2015 Impact Factor: 2.0
2015 SCImago Journal Rankings: 2.837
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYang, Jen_US
dc.contributor.authorTham, LGen_US
dc.contributor.authorLee, PKKen_US
dc.contributor.authorChan, STen_US
dc.contributor.authorYu, Fen_US
dc.date.accessioned2012-06-26T06:03:53Z-
dc.date.available2012-06-26T06:03:53Z-
dc.date.issued2006en_US
dc.identifier.citationGeotechnique, 2006, v. 56 n. 4, p. 245-259en_US
dc.identifier.issn0016-8505en_US
dc.identifier.urihttp://hdl.handle.net/10722/150361-
dc.description.abstractAs an alternative to conventional dynamic pile installation methods, pile jacking is an environmentally friendly technique that could become more widely accepted. Great concern has arisen over the performance of jacked piles as compared with that of driven piles. This paper describes a comprehensive field study that was aimed at investigating the differences and similarities between the behaviour of jacked H-piles and that of driven H-piles. The instrumented piles, varying in length from 32 to 55 m and having a design capacity of up to 3540 kN, were installed in residual soils whose properties are close to silty sands. The load test results indicate that the shaft resistance of jacked piles is generally suffer and stronger than that of driven piles, but the base resistance of jacked piles is weaker than that of driven piles. At a load level of twice the design capacity, the percentage of pile head load carried by base varies from 2% to 10% for jacked piles, with a mean value of 6%; for driven piles the percentage varies from 6% to 61% with a mean value of 38%. The back-calculated values of the shaft friction coefficient, β, were found to be in a range of 0.25-0.6 for both jacked and driven piles. A correlation was also observed between the ultimate shaft friction and the mean standard penetration test N value (N̄), which suggests that the shaft friction can be taken as 1.5N̄ to 2N̄ (kPa) for both jacked and driven H-piles.en_US
dc.languageengen_US
dc.publisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.geotechnique-ice.comen_US
dc.relation.ispartofGeotechniqueen_US
dc.rightsGeotechnique. Copyright © Thomas Telford Ltd.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPermission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees-
dc.subjectBearing Capacityen_US
dc.subjectFull-Scale Testsen_US
dc.subjectPilesen_US
dc.subjectResidual Soilsen_US
dc.subjectSandsen_US
dc.titleBehaviour of jacked and driven piles in sandy soilen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0016-8505&volume=56&issue=4&spage=245&epage=259&date=2006&atitle=Behaviour+of+jacked+and+driven+piles+in+sany+soil-
dc.identifier.emailYang, J: junyang@hkucc.hku.hken_US
dc.identifier.emailTham, LG: hrectlg@hkucc.hku.hken_US
dc.identifier.emailLee, PKK: hreclkk@hkucc.hku.hken_US
dc.identifier.authorityYang, J=rp00201en_US
dc.identifier.authorityTham, LG=rp00176en_US
dc.identifier.authorityLee, PKK=rp00141en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1680/geot.2006.56.4.245en_US
dc.identifier.scopuseid_2-s2.0-33744825991en_US
dc.identifier.hkuros115787-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33744825991&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume56en_US
dc.identifier.issue4en_US
dc.identifier.spage245en_US
dc.identifier.epage259en_US
dc.identifier.isiWOS:000237689200002-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridYang, J=35605258800en_US
dc.identifier.scopusauthoridTham, LG=7006213628en_US
dc.identifier.scopusauthoridLee, PKK=24522826500en_US
dc.identifier.scopusauthoridChan, ST=8227101100en_US
dc.identifier.scopusauthoridYu, F=22936179800en_US

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