A New Method for Predicting Coal and Gas Outbursts

Table 9

Distribution of percentages of prediction index K_1max during the test.

K1max (mL/g.min^1/2)	Total times (109)	Percentage
≥0.1	109	100
≥0.2	107	98
≥0.3	96	88
≥0.4	70	64
≥0.5	61	56
≥0.6	44	40
≥0.7	32	29
≥0.8	20	18
≥0.9	7	6
≥1.0	4	4