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Modelling load–displacement response of driven piles in cohesionless soils under tensile loading
Authors:Ahmed Shlash Alawneh  
Affiliation:

Civil Engineering Department, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan

Abstract:A new methodology for deriving the uplift load–displacement response of long driven piles in cohesionless soils is proposed. This method accounts for the effects of the friction fatigue processes during pile driving and the existence of locked-in residual stresses at the end of pile driving before commencing the pile load test. A hyperbolic formulation is utilized to simulate the nonlinear load transfer curves (the so-called tz curves). The utility of this technique is demonstrated for a field pullout load test on a driven pile in sand. Predicted and measured load–displacement curves showed good agreement, indicating that this approach yields reasonable results as long as representative input parameters are employed.
Keywords:Load–displacement curve   Tension pile   Driven pile   Residual stresses   Friction fatigue   Load transfer
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