Macro-Micro Failure Mechanisms and Damage Modeling of a Bolted Rock Joint

Table 2

Microparameters of the bolt.

Microparameters	Values	Remark
Minimum radius/mm	2.0
Disk radius ratio	1.0
Disk density/kg·m^−3	7000	Uniform distribution
Disk contact modulus/GPa	30
Disk stiffness ratio	1.2
Disk friction coefficients	10
Parallel bond normal strength/MPa	380 ± 20	Normal distribution
Parallel bond shear strength/MPa	266 ± 20	Normal distribution
Parallel bond stiffness ratio	2.6
Parallel bond radius multiplier	1.0