الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Soil arching phenomenon with pile shafts has been recognized, however few researchers have investigated this phenomenon numerically. An extensive literature review on the phenomenon was conducted,and a number of field tests related to the subject were reported and summarized. The published field tests were used to validate and calibrate the numerical finite element analyses presented in this study. A 2D- axisymmetric Finite Element single pile model has been utilized and validated using several field-testing experiments to examine the soil arching phenomenon. The presented study applies the hardening/softening (Drucker-Prager) constitutive model to account for the soil non-linear behavior. A series of parametric studies was conducted to investigate the influence of some key factors (e.g. pile length, sand relative density and pile diameter, etc..) on the single pile behavior. In each study, a baseline case with a typical configuration was employed and then followed by a one parameter change at a time to investigate the influence of that parameter on pile behavior. Moreover, comparisons have been conducted with the Egyptian code for deep foundation for predicting the ultimate single pile bearing capacity considering soil arching. The numerical analysis conducted shows the importance of soil arching phenomenon on the overall behavior of piles and on the prediction of bored piles bearing capacity.