, Page 0-0 (1)

Volume Title: ICASGE2015

DOI: ICASGE-GEO

Zahra A. Kamal1; Mohamed G. Arab1 and Adel Dif1

Several bored pile compression field-testing observations showed the arching phenomena and its effect on side shear resistance. Finite elements numerical model is developed in this paper to study the arching phenomena of bored pile and the effect on the overall compression capacity of single board piles. The numerical model developed apply a hardening/softening model (multisurface) constitutive model to account for sandy soil non-linear behavior. 2D- axisymmetric Finite Elements full pile model has been developed and calibrated using several field-testing available in the literature. A numerical study has been conducted to investigate the effect of arching phenomena on single pile capacity considering three major influence factors: pile length, pile diameter and sand relative density. Comparisons have been conducted with the Egyptian code for deep foundation for predicting the critical depth at which arching phenomena in bored pile develops. The numerical analysis conducted shows the importance of arching phenomena on the overall behavior of piles and on the prediction of bored piles bearing capacity.

Numerical modelling; Bored pile, Pile bearing capacity, Limit shaft resistance; Arching phenomenon