File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Recent field study on the behaviour of jacked piles

TitleRecent field study on the behaviour of jacked piles
Authors
KeywordsBehaviour
Comparing
Driven piles
Hong Kong
Jacked piles
Load tests
Issue Date2004
PublisherStructural Engineers Trading Organisation Ltd. The Journal's web site is located at http://www.istructe.org.uk/thestructuralengineer/index.asp
Citation
Structural Engineer, 2004, v. 82 n. 20, p. 19-22 How to Cite?
AbstractIn recent years jacked steel H-piles have been introduced into Hong Kong as an alternative to driven piles. In Hong Kong practice, termination of pile driving is often based on dynamic formula and pile tips are normally embedded in a stratum with SPT-N values exceeding 200. On the other hand, installation of jacked piles ceases when the rate of penetration is less than some prescribed termination criterion and jacked piles are normally embedded in layers with SPT-N values of less than 160. As such bearing stratum is less stiff, the load transfer mechanism and capacity of jacked piles could be very different from driven piles and experience from the latter may not be directly applicable. To investigate the behaviour of such piles, a comprehensive study was conducted. In the study, six piles were instrumented with strain gauges and load tested to failure so allowing their load transfer mechanism to be studied. During installation the development of pore pressure around three of the test piles was monitored by electronic piezometers. Different criteria were adopted for determining the termination of jacking. It was found that the test piles passed the same acceptance criteria specified in the building code for driven piles. Shaft friction in the test piles contributed to over 80% of the piles' ultimate capacity. The pore pressure was found to dissipate quickly after jacked pile installation.
Persistent Identifierhttp://hdl.handle.net/10722/71869
ISSN
2015 SCImago Journal Rankings: 0.169
References

 

DC FieldValueLanguage
dc.contributor.authorLee, PKKen_HK
dc.contributor.authorTham, LGen_HK
dc.contributor.authorChan, STen_HK
dc.contributor.authorYu, Fen_HK
dc.contributor.authorYang, Jen_HK
dc.date.accessioned2010-09-06T06:35:54Z-
dc.date.available2010-09-06T06:35:54Z-
dc.date.issued2004en_HK
dc.identifier.citationStructural Engineer, 2004, v. 82 n. 20, p. 19-22en_HK
dc.identifier.issn1466-5123en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71869-
dc.description.abstractIn recent years jacked steel H-piles have been introduced into Hong Kong as an alternative to driven piles. In Hong Kong practice, termination of pile driving is often based on dynamic formula and pile tips are normally embedded in a stratum with SPT-N values exceeding 200. On the other hand, installation of jacked piles ceases when the rate of penetration is less than some prescribed termination criterion and jacked piles are normally embedded in layers with SPT-N values of less than 160. As such bearing stratum is less stiff, the load transfer mechanism and capacity of jacked piles could be very different from driven piles and experience from the latter may not be directly applicable. To investigate the behaviour of such piles, a comprehensive study was conducted. In the study, six piles were instrumented with strain gauges and load tested to failure so allowing their load transfer mechanism to be studied. During installation the development of pore pressure around three of the test piles was monitored by electronic piezometers. Different criteria were adopted for determining the termination of jacking. It was found that the test piles passed the same acceptance criteria specified in the building code for driven piles. Shaft friction in the test piles contributed to over 80% of the piles' ultimate capacity. The pore pressure was found to dissipate quickly after jacked pile installation.en_HK
dc.languageengen_HK
dc.publisherStructural Engineers Trading Organisation Ltd. The Journal's web site is located at http://www.istructe.org.uk/thestructuralengineer/index.aspen_HK
dc.relation.ispartofStructural Engineeren_HK
dc.subjectBehaviouren_HK
dc.subjectComparingen_HK
dc.subjectDriven pilesen_HK
dc.subjectHong Kongen_HK
dc.subjectJacked pilesen_HK
dc.subjectLoad testsen_HK
dc.titleRecent field study on the behaviour of jacked pilesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1466-5123&volume=82&issue=20&spage=19&epage=22&date=2004&atitle=Recent+field+study+on+the+behaviour+of+jacked+pilesen_HK
dc.identifier.emailLee, PKK:hreclkk@hkucc.hku.hken_HK
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_HK
dc.identifier.emailYang, J:junyang@hkucc.hku.hken_HK
dc.identifier.authorityLee, PKK=rp00141en_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.identifier.authorityYang, J=rp00201en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-18744413579en_HK
dc.identifier.hkuros105211en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-18744413579&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume82en_HK
dc.identifier.issue20en_HK
dc.identifier.spage19en_HK
dc.identifier.epage22en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLee, PKK=24522826500en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK
dc.identifier.scopusauthoridChan, ST=8227101100en_HK
dc.identifier.scopusauthoridYu, F=22936179800en_HK
dc.identifier.scopusauthoridYang, J=35605258800en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats