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자료유형
학술저널
저자정보
Shen, R.F. (Centre for Soft Ground Engineering, Department of Civil and Environmental Engineering, National University of Singapore) Leung, C.F. (Centre for Soft Ground Engineering, Department of Civil and Environmental Engineering, National University of Singapore) Chow, Y.K. (Centre for Soft Ground Engineering, Department of Civil and Environmental Engineering, National University of Singapore)
저널정보
테크노프레스 Geomechanics & engineering Geomechanics & engineering 제5권 제3호
발행연도
2013.1
수록면
195 - 221 (27page)

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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.

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