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

Table 4

The statistics of axial and lateral strain of the coal sample in the adsorption process.

Sample ID	Gas pressure (MPa)	Axial strain (με)		Lateral strain (με)
		Test value	Average value	Test value	Average value
B2-1	1	1845	1512	1606	1227
B2-2		1687		1296
B2-3		1004		779
B3-1	2	2497	2598	2053	1907
B3-2		2435		2487
B3-3		2863		1183

Note. 1 με is one millionth.