Effect of Gas on Burst Proneness and Energy Dissipation of Loaded Coal: An Experimental Study Using a Novel Gas-Solid Coupling Loading Apparatus

Table 1

Physical and mechanical parameters of coal seam No. 22 in Bulianta coal mine.

Parameters	Values
Wave velocity (m/s)	1266
Porosity (%)	9.9
Rock quality designation, RQD (%)	56.8
Cohesion (MPa)	19.3
Tensile strength (MPa)	1.2
Angle of internal friction (°)	24.5