Research Article

Research on the Rockburst Tendency and AE Characteristics of Inhomogeneous Coal-Rock Combination Bodies

Table 1

Microparameters of rock and mine.

MaterialsDensity (kg/m3)Radius (mm)Friction coefficientRadius of parallel bond (mm)Elastic modulus (GPa)Bonding strength (MPa)

Mine
Rock
1800
2600
0.2~0.30.514
12
15
45