Experimental Study on Sand Inrush Hazard of Water-Sand Two-Phase Flow in Broken Rock Mass

Table 3

Fitting parameters for Equation (11).

Fracture aperture ()	Fitting coefficients			Correlation coefficient
	2 mm	81	3.62		42.2	0.9565
3 mm	174	9.45	41.0	0.7895
4 mm	282	26.63	38.2	0.9822
5 mm	323	65.69	35.85	0.9518
6 mm	342	136.16	31.55	0.9320