Modelling load–displacement response of driven piles in cohesionless soils under tensile loading

✍ Scribed by Ahmed Shlash Alawneh

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 516 KB
• Volume: 32
• Category: Article
• ISSN: 0266-352X
• DOI: 10.1016/j.compgeo.2005.11.003

✦ Synopsis

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 t-z 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.