Permeability Characteristics of Water-Sand Seepage in Fracture by Experiment

Table 1

Fitted equations of permeability parameters changing with JRC at d_s = 0.061∼0.080 mm.

Number	ρs (kg/m^3)	Parameter of permeability	Fitting equations	Coefficients
1	20	Ie	Ie = 6.40 × 10^−5e − 0.38JRC	0.9979
		β	β = 8.10 × 10^4e0.45JRC	0.9943
2	40	Ie	Ie = 8.08 × 10^−6e − 0.35JRC	0.9246
		β	β = 2.41 × 10^6e0.32JRC	0.9946
3	60	Ie	Ie = 3.75 × 10^−6e − 0.38JRC	0.9004
		β	β = 1.55 × 10^6e0.47JRC	0.9763
4	80	Ie	Ie = 5.36 × 10^−6e − 0.44JRC	0.9871
		β	β = 2.15 × 10^6e0.43JRC	0.9827