Numerical Study of the Dynamic Compaction Process considering the Phenomenon of Particle Breakage

Table 1

Microscale parameters of PFC^3D model.

Parameters	Values
Particle number	73318
Particle density (kg·m^−3)	2600
Particle radius (m)	0.04
Mass damping	0.70
Normal stiffness of the particles (N·m^−2)	5 × 10^6
Tangential stiffness of the particles (N·m^−2)	5 × 10^6
Hysteretic damping	0.50
Initial ground void ratio	0.40
Interparticle frictional coefficient	0.50
Tamp density (kg·m^−3)	7800
Rammer gravity (N)	3000.30
Normal stiffness of the boundaries (N·m^−2)	1.00 × 10^8
Tangential stiffness of the boundaries(N·m^−2)	1.00 × 10^8
Poisson’s ratio	0.30
m	10.00
d0 (mm)	2.00
θ0 (rad)	π/18
σlim,0 (Pa)	3.00 × 10^9