Abstract: The Particle Flow Code PFC^2D is a generalpurpose distinct element modeling software. This paper presents the simulation of the equal wall thickness tapered pile installation process by static pressin method. The following conclusions can be made: the maximum radial deformation magnitude around the pile increased with the pile installation depth. With the increase of the pile penetration, at the soil radial deformation at the same pile location increased to a maximum value and then decreased. The location of the maximum radial deflection moved downward with the increase of pile penetration depth. Compared with the equal-diameter piles, a higher normal stress acting on the shaft surface of the tapered pile and this higher normal stress increased the pilesoil interactions. The soil surrounding the tapered pile moved downward during the pile installation. With the increase of pile penetration, the porous ratio gradually decreased and the zone soils with porous ratio change increased. 

Key words: tapered pile, PFC^2D, static pressedin piles