Numerical Study on the Impact Instability Characteristics Induced by Mine Earthquake and the Support Scheme of Roadway

Table 4

Properties of the bolt and cable elements used in the UDEC.

Parameters	Density (kg/m^3)	Elastic modulus (GPa)	Tensile capability (kN)	Bond stiffness (N/m/m)	Bond strength (N/m)	Pretension (kN)
Cable	7500	200	480	2 × 10^9	4 × 10^5	280
Bolt	7500	200	120	2 × 10^9	4 × 10^5	80