Research on the Propagation Law of Stress Wave in Rock Mass Supported by Bolt under Dynamic Load

Table 1

Numerical model physical and mechanical parameters.

Parameter	Rock	Bolt
Inhomogeneous index	3	50
Strength (MPa)	150	350
Young’s modulus (MPa)	58000	210000
Poisson’s ratio	0.25	0.27
Density (kg/m^3)	2500	7800
Friction angle (°)	32.7	30