Analysis of non-uniform piles driven into cohesive soils

In this paper, a theoretical method based on cavity expansion method (CEM) in conjunction with wave equation theory is used for analysis of driven tapered piles into cohesive soils. The results show that tapered piles are driven easier than cylindrical piles of the same length and volume. Also, with increasing the pile taper angle, the permanent pile displacement increases, which is significant in pile driving.