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Article: Relating the maximum radial stress on pile shaft to pile base resistance
Title | Relating the maximum radial stress on pile shaft to pile base resistance | ||||||
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Authors | |||||||
Keywords | Bearing capacity Compressibility Piles Sands Stiffness | ||||||
Issue Date | 2011 | ||||||
Publisher | Thomas Telford (ICE Publishing). The Journal's web site is located at http://www.geotechnique-ice.com | ||||||
Citation | Geotechnique, 2011, v. 61 n. 12, p. 1087-1092 How to Cite? | ||||||
Abstract | An approximate analytic relationship is developed between the maximum radial stress on the shaft of a displacement pile in sand and the base resistance of the pile. Using the cavity expansion analogy, together with a confined failure mechanism, the ratio between the two quantities, defined as a factor S t, is established as a function of the friction angle, shear stiffness, compressibility and mean effective stress of the sand near the pile tip. It is shown that, given otherwise identical input parameters, the value of S t will decrease with increasing friction angle, and with decreasing mean stress level. It also tends to decrease with an increase in relative density. It is predicted that S t has typical values between 0.03 and 0.05, in broad agreement with the range of empirically derived values in the literature. The relationship also predicts that S t may take much higher values (~0.1) for piles installed in dense sand or in highly compressible sand. Because of the analytical nature, the established relationship provides useful insights into the mechanisms involved and important implications for design practice. | ||||||
Persistent Identifier | http://hdl.handle.net/10722/139047 | ||||||
ISSN | 2023 Impact Factor: 4.2 2023 SCImago Journal Rankings: 1.791 | ||||||
ISI Accession Number ID |
Funding Information: The financial support provided by the Research Grants Council of Hong Kong and by the University of Hong Kong is gratefully acknowledged. | ||||||
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, J | en_HK |
dc.contributor.author | Mu, F | en_HK |
dc.date.accessioned | 2011-09-23T05:44:35Z | - |
dc.date.available | 2011-09-23T05:44:35Z | - |
dc.date.issued | 2011 | en_HK |
dc.identifier.citation | Geotechnique, 2011, v. 61 n. 12, p. 1087-1092 | en_HK |
dc.identifier.issn | 0016-8505 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/139047 | - |
dc.description.abstract | An approximate analytic relationship is developed between the maximum radial stress on the shaft of a displacement pile in sand and the base resistance of the pile. Using the cavity expansion analogy, together with a confined failure mechanism, the ratio between the two quantities, defined as a factor S t, is established as a function of the friction angle, shear stiffness, compressibility and mean effective stress of the sand near the pile tip. It is shown that, given otherwise identical input parameters, the value of S t will decrease with increasing friction angle, and with decreasing mean stress level. It also tends to decrease with an increase in relative density. It is predicted that S t has typical values between 0.03 and 0.05, in broad agreement with the range of empirically derived values in the literature. The relationship also predicts that S t may take much higher values (~0.1) for piles installed in dense sand or in highly compressible sand. Because of the analytical nature, the established relationship provides useful insights into the mechanisms involved and important implications for design practice. | en_HK |
dc.language | eng | en_US |
dc.publisher | Thomas Telford (ICE Publishing). The Journal's web site is located at http://www.geotechnique-ice.com | en_HK |
dc.relation.ispartof | Geotechnique | en_HK |
dc.rights | Permission 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.subject | Bearing capacity | en_HK |
dc.subject | Compressibility | en_HK |
dc.subject | Piles | en_HK |
dc.subject | Sands | en_HK |
dc.subject | Stiffness | en_HK |
dc.title | Relating the maximum radial stress on pile shaft to pile base resistance | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0016-8505&volume=61&issue=12&spage=&epage=&date=2011&atitle=Relating+the+maximum+radial+stress+on+pile+shaft+to+pile+base+resistance | en_US |
dc.identifier.email | Yang, J:junyang@hkucc.hku.hk | en_HK |
dc.identifier.authority | Yang, J=rp00201 | en_HK |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1680/geot.10.T.006 | en_US |
dc.identifier.scopus | eid_2-s2.0-80955142464 | en_HK |
dc.identifier.hkuros | 193048 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-80955142464&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 61 | en_HK |
dc.identifier.issue | 12 | en_HK |
dc.identifier.spage | 1087 | en_HK |
dc.identifier.epage | 1092 | en_HK |
dc.identifier.isi | WOS:000297711100008 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Yang, J=35605258800 | en_HK |
dc.identifier.scopusauthorid | Mu, F=38362100800 | en_HK |
dc.identifier.issnl | 0016-8505 | - |