Abstract
The load distribution and deflection of large diameter piles are investigated by lateral load transfer method ( p– y curve). Special attention is given to the soil continuity and soil resistance using three-dimensional finite element analysis. A framework for determining a p– y curve is calculated based on the surrounding soil stress. The appropriate parametric studies needed for verifying the p– y characteristic are presented in this paper. Through comparisons with results of field load tests, the three-dimensional numerical methodology in the present study is in good agreement with the general trend observed by in situ measurements and thus, represents a realistic soil–pile interaction for laterally loaded piles in clay than that of existing p– y method. It can be said that a rigorous numerical analysis can overcome the limitations of existing p– y methods to some extent by considering the effect of realistic three-dimensional combination of pile–soil forces.
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