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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 59
Edited by: B.H.V. Topping and B. Kumar
Paper XII.3

Three-Dimensional Finite Element Analyses of Passive Pile Behaviour

J.L. Pan*, A.T.C. Goh+, K.S. Wong+ and A.R. Selby*

*School of Engineering, University of Durham, England
+School of Civil and Structural Engineering, Nanyang Technological University, Singapore

Full Bibliographic Reference for this paper
J.L. Pan, A.T.C. Goh, K.S. Wong, A.R. Selby, "Three-Dimensional Finite Element Analyses of Passive Pile Behaviour", in B.H.V. Topping, B. Kumar, (Editors), "Developments in Analysis and Design using Finite Element Methods", Civil-Comp Press, Edinburgh, UK, pp 271-276, 1999. doi:10.4203/ccp.59.12.3
Hypothetical three-dimensional finite element case studies were carried out to investigate the behaviour of full-scale single rigid and flexible concrete piles embedded in soft clay and subjected to lateral soil movements('passive' piles), and to determine the ultimate soil pressure p_u, acting along the pile shaft. The finite element analysis results indicated that the pile flexibility has minimal effects on the ultimate soil pressures. The calculated ultimate soil pressures were 10.8s_u (s_u is the undrained shear strength) for the rigid pile and 11.5s_u for the flexible pile and compared fairly well with those of Chen. The shape of the pile deflections was predicted. The p-delta (delta is the relative displacement between the pile and the soil) pile-soil interaction relationships were also derived.

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