Numerical Analysis on Load-Displacement Curves of Pile Bearing Uplift Load with Expanded Plates

Abstract

Several axisymmetric pile-soil finite element models were established to analyze load-placement curves. It was proved that the bearing capacity of the pile with plates is more than the equivalent diameter pile, and the subjacent plate has a remarkable potentiality, so the plate of pile should be at deep depth; the span of adjacent plates should not be less than the critical one, or the upper plate and the subjacent one will influence each other and reduce the uplift bearing capacity; the plate shape and height affect less than diameter to pile bearing capacity. The result is helpful to the design and construction of similar piles.