A Study of the Laws of Abnormal Gas Emissions and the Stability Controls for Coal Mine Walls in Deeply Buried High-Gas Coal Seams

Table 1

BET specific surface areas of the different coal seams.

Pore structure parameters	No.	No. 6 hard	No. 6 soft	No. 8 hard	No. 8 soft
BET specific surface area (m^2/g)	1	1.987	3.7882	0.775	1.4581
	2	1.7895	3.1049	0.8103	1.6639
	3	1.6259	3.7332	0.8981	1.7318
	Average value	1.8008	3.5421	0.8278	1.6179