Numerical Investigation of Relationship between Bursting Proneness and Mechanical Parameters of Coal

Table 3

Empirical parameters initially used in the numerical simulation [51].

UCS (MPa)	Young’s modulus (GPa)	Poisson’s ratio	Cohesion (MPa)	Friction angle (°)	Tensile strength (MPa)
4.90–10.0	0.29–2.45	0.1–0.30	0.98–9.81	19–40	0.24–5.79
9.81–15.7	2.45–6.37	0.1–0.30	1.96–3.92	28–35	1.47–2.45
19.6–49.0	8.83–22.60	0.1–0.35	3.92–5.88	35–45	1.96–9.81