Experimental and Numerical Study of the Failure Behavior of Intermittent Rock Joints Subjected to Direct Shear Load

Table 2

Microparameters in bonded particle model.

Microparameters	Values
Minimum particle radius, Rmin (mm)	0.3
Particle size ratio, Rmax/Rmin	1.66
Particle bulk density, ρ (kg/m^3)	1560
Particle contact modulus, Ec (GPa)	0.6
Ratio of particle normal to shear stiffness, k^n/k^s	2.0
Particle friction coefficient, μ	0.5
Parallel-bond modulus, Ec (GPa)	0.6
Ratio of parallel-bond normal to shear stiffness,	2.0
Parallel-bond normal strength, mean σm (MPa)	9.0
Parallel-bond normal strength, standard deviation σsd (MPa)	2.0
Parallel-bond shear strength, mean τm (MPa)	5.4
Parallel-bond shear strength, standard deviation τsd (MPa)	1.0