Study on the Physical Properties and Joint Evolution Characteristics of Three-Dimensional Reconstructed Coal

Table 2

Microscopic parameters of the coal sample model.

Particle microscopic parameters		Flat joint contact model microparameters		Arithmetic parameter
ρs (kg/m^3)	2700	N	4	Kn (GPa)	1.09
R min (mm)	0.10	μ	0.55	Ks (GPa)	1.09
R max/R min	1.5	σt (MPa)	0.55	coh (MPa)	4
Ep (GPa)	1.0	c (MPa)	4	φ (°)	20.8
p	1.3	φ (°)	20.8	σt (MPa)	4
p	0.5	E (GPa)	1
		K	1