Effect of Multiple Hole Distribution and Shape Based on Particle Flow on Rocklike Failure Characteristics and Mechanical Behavior

Table 1

Micromechanics parameters based on PFC.

Parameter	Value
Minimum particle diameter (mm)	0.3
Particle diameter ratio	1.6
Density (kg/m^3)	1470
Contact modulus of the particle (GPa)	1.32
CB gap (mm)	0.05
Normal critical damping ratio	0.5
Porosity	0.1
PB friction angle (°)	35
PB tensile strength (MPa)	3.5
PB cohesive force (MPa)	6.3