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Title: Physical and numerical modeling of drag load development on a model end-bearing pile
Authors: Shen, R.F. 
Leung, C.F. 
Chow, Y.K. 
Keywords: Centrifuge model test
Finite element method
Negative skin friction
Issue Date: 2013
Citation: Shen, R.F.,Leung, C.F.,Chow, Y.K. (2013). Physical and numerical modeling of drag load development on a model end-bearing pile. Geomechanics and Engineering 5 (3) : 195-221. ScholarBank@NUS Repository.
Abstract: A centrifuge model study is carried out to investigate the behavior of pile subject to negative skin friction induced by pile installation, ground water drawdown and surcharge loading. A single end-bearing pile is examined as the induced negative skin friction would induce the most severe stress on the pile structural material as compared to friction piles. In addition, the behavior of the pile under simultaneous negative skin friction and dead/live loads is examined. To facilitate detailed interpretations of the test results, the model setup is extensively instrumented and involves elaborate test control schemes. To further examine the phenomenon of negative skin friction on an end-bearing pile, finite element analyses were conducted. The numerical analysis is first validated against the centrifuge test data and subsequently extended to examine the effects of pile slenderness ratio, surcharge intensity and pile-soil stiffness ratio on the degree of mobilization of negative skin friction induced on the pile. Finally experimental and numerical studies are conducted to examine the effect of applied transient live load on pile subject to negative skin friction. © 2013 Techno-Press, Ltd.
Source Title: Geomechanics and Engineering
ISSN: 2005307X
DOI: 10.12989/gae.2013.5.3.195
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