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

Table 5

Results of the mechanical property of coal samples under different gas pressures.

Gas pressure (MPa)	Sample ID	σC (MPa)		E (GPa)		ν
		Test value	Average value	Test value	Average value	Test value	Average value
0	B1-1	29.83	31.66	2.08	2.11	0.28	0.29
	B1-2	35.59		2.26		0.30
	B1-3	29.56		1.99		0.29
1	B2-1	21.84	23.95	1.32	1.35	0.32	0.31
	B2-2	27.01		1.36		0.23
	B2-3	23.01		1.38		0.38
2	B3-1	12.07	13.05	1.40	1.08	0.33	0.40
	B3-2	11.59		0.93		0.48
	B3-3	15.50		0.90		0.39

Note. σ_C = UCS; E = elastic modulus; ν = Poisson's ratio.