Prevention and Control of Spontaneous Combustion of Residual Coals in Acid-Soaked Goaf in Gas Drainage Condition

Table 3

Gas drainage data of high-level drainage roadway under different air intake conditions.

Air intake (m^3.min^−1)	Mixing amount (m^3.min^−1)	Gas drainage in high drainage roadway
		Volume fraction (%)	Scalar quantity (m^3.min^−1)	Proportion of gushing volume (%)
1400	90	32.3	29.07	69.71
1800	90	11.2	10.08	24.17