Research on Water-Filled Source Identification Technology of Coal Seam Floor Based on Multiple Index Factors

Table 2

Discriminant index of water inrush water source.

Water sample label	Water inflow (m^3/h)	Water pressure (MPa)	Water inrush coefficient (MPa/m)	Fault fractal dimension	Water-filled source
W1	1.4	2.5	0.063	1.632	I
W2	1.0	0.8	0.071	1.681	I
W3	43.0	3.5	0.318	1.539	I
W4	0.5	0.7	0.058	1.160	I
W5	2.0	0.6	0.050	1.385	I
W6	0.1	0.6	0.055	1.765	I
W7	3.0	0.2	0.017	1.539	I
W8	3.0	0.4	0.033	1.274	I
W9	20.0	0.6	0.050	1.274	I
W10	7.0	0.6	0.055	1.601	I
W11	30.0	3.2	0.146	1.539	II
W12	40.0	4.3	0.051	1.632	II
W13	30.0	2.0	0.091	1.385	II
W14	35.0	2.0	0.024	1.632	II
W15	15.0	1.2	0.055	1.601	II
W16	20.0	2.6	0.031	1.632	II
W17	45.0	1.0	0.046	1.385	II
W18	25.0	2.6	0.031	1.632	II
W19	25.0	1.8	0.021	1.632	II
W20	40.0	1.9	0.022	1.632	II
W21	3.0	1.9	0.022	1.632	II