Shear Failure of Bolted Joints considering Mesoscopic Deformation Characteristics of Rock

Table 2

Particle microscopic parameters.

Parameter types	Mesoscopic parameters	Value
Basic particle parameters	Grain density
	Porosity
	Particle size ratio
	Particle radius
	Contact modulus
	Stiffness ratio
	Coefficient of friction
Parallel bonding parameter	Parallel bonding modulus
	Parallel bonding stiffness ratio
	Normal strength of parallel bonding ()
	Parallel bonding force ()	7.0
	Parallel bonding friction angle