Numerical simulation of particle flow code for pile tip resistance and lateral friction to jacked piles down in sand soil

Based on the particle flow code and PFC program, this paper simulates the driving course of a jacked pile, analyses the variation of pile tip resistance with driving speed for three kinds of piles which are the flat pile, 120° tapered pile and 60° tapered pile, and analyses the varying curves of pile lateral friction with different driving depth. Further more, there are some preliminary conclusions on the varying law of pile tip resistance and lateral friction.