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Article: Observed performance of long steel H-piles jacked into sandy soils

TitleObserved performance of long steel H-piles jacked into sandy soils
Authors
KeywordsField tests
Interactions
Piles
Pore pressures
Sand
Issue Date2006
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/gt.html
Citation
Journal Of Geotechnical And Geoenvironmental Engineering, 2006, v. 132 n. 1, p. 24-35 How to Cite?
AbstractFull-scale field tests were performed to study the behavior of two steel H-piles jacked into dense sandy soils. The maximum embedded length of the test piles was over 40m and the maximum jacking force used was in excess of 7,000 kN. The test piles were heavily instrumented with strain gauges along their shafts to measure the load transfer mechanisms during jacking and the subsequent period of static load tests. Piezometers were installed in the vicinity of the piles to monitor the pore pressure responses at different depths. The time effect and the effect of installation of adjacent piles were also investigated in this study. The test results indicated that, although both piles were founded on stiff sandy strata, most of the pile capacity was carried by shaft resistance rather than base resistance. This observation implies that the design concept that piles in dense sandy soils have very large base capacity and small shaft resistance is likely to be inappropriate for jacked piles. It was also found that the variation in pore pressures induced by pile jacking was closely associated with the progress of pile penetration; the pore pressure measured by each piezometer reached a maximum when the pile tip arrived at the piezometer level. A nearby pile jacking was able to produce large tensile stresses dominating in the major portion of an installed pile; both the magnitude and distribution of the induced stresses were related to the penetration depth of the installing pile. © 2006 ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/71068
ISSN
2015 Impact Factor: 1.696
2015 SCImago Journal Rankings: 2.344
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYang, Jen_HK
dc.contributor.authorTham, LGen_HK
dc.contributor.authorLee, PKKen_HK
dc.contributor.authorYu, Fen_HK
dc.date.accessioned2010-09-06T06:28:37Z-
dc.date.available2010-09-06T06:28:37Z-
dc.date.issued2006en_HK
dc.identifier.citationJournal Of Geotechnical And Geoenvironmental Engineering, 2006, v. 132 n. 1, p. 24-35en_HK
dc.identifier.issn1090-0241en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71068-
dc.description.abstractFull-scale field tests were performed to study the behavior of two steel H-piles jacked into dense sandy soils. The maximum embedded length of the test piles was over 40m and the maximum jacking force used was in excess of 7,000 kN. The test piles were heavily instrumented with strain gauges along their shafts to measure the load transfer mechanisms during jacking and the subsequent period of static load tests. Piezometers were installed in the vicinity of the piles to monitor the pore pressure responses at different depths. The time effect and the effect of installation of adjacent piles were also investigated in this study. The test results indicated that, although both piles were founded on stiff sandy strata, most of the pile capacity was carried by shaft resistance rather than base resistance. This observation implies that the design concept that piles in dense sandy soils have very large base capacity and small shaft resistance is likely to be inappropriate for jacked piles. It was also found that the variation in pore pressures induced by pile jacking was closely associated with the progress of pile penetration; the pore pressure measured by each piezometer reached a maximum when the pile tip arrived at the piezometer level. A nearby pile jacking was able to produce large tensile stresses dominating in the major portion of an installed pile; both the magnitude and distribution of the induced stresses were related to the penetration depth of the installing pile. © 2006 ASCE.en_HK
dc.languageengen_HK
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/gt.htmlen_HK
dc.relation.ispartofJournal of Geotechnical and Geoenvironmental Engineeringen_HK
dc.rightsJournal of Geotechnical and Geoenvironmental Engineering. Copyright © American Society of Civil Engineers.en_HK
dc.subjectField testsen_HK
dc.subjectInteractionsen_HK
dc.subjectPilesen_HK
dc.subjectPore pressuresen_HK
dc.subjectSanden_HK
dc.titleObserved performance of long steel H-piles jacked into sandy soilsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1090-0241&volume=132&issue=1&spage=24&epage=35&date=2006&atitle=Observed+performance+of+long+steel+H-piles+jacked+into+sandy+soilsen_HK
dc.identifier.emailYang, J:junyang@hkucc.hku.hken_HK
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_HK
dc.identifier.emailLee, PKK:hreclkk@hkucc.hku.hken_HK
dc.identifier.authorityYang, J=rp00201en_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.identifier.authorityLee, PKK=rp00141en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1061/(ASCE)1090-0241(2006)132:1(24)en_HK
dc.identifier.scopuseid_2-s2.0-31444447083en_HK
dc.identifier.hkuros115785en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-31444447083&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume132en_HK
dc.identifier.issue1en_HK
dc.identifier.spage24en_HK
dc.identifier.epage35en_HK
dc.identifier.isiWOS:000234604300003-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYang, J=35605258800en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK
dc.identifier.scopusauthoridLee, PKK=24522826500en_HK
dc.identifier.scopusauthoridYu, F=22936179800en_HK

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