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Table 5 Fitted equations of permeability parameters changing with \(d_{s}\) at JRC 4–6

From: Influence of particle size on non-Darcy seepage of water and sediment in fractured rock

Number Sand concentration (kg/m3) Permeability parameters Fitting equations Coefficient
1 20 \(I_{e}\) \(I_{e} = 3.40 \times 10^{ - 6} e^{{ - 20.03d_{s} }}\) 0.9980
\(\beta\) \(\beta = 2.64 \times 10^{6} e^{{21.79d_{s} }}\) 0.9872
2 40 \(I_{e}\) \(I_{e} = 1.65 \times 10^{ - 6} e^{{ - 14.80d_{s} }}\) 0.9693
\(\beta\) \(\beta = 3.10 \times 10^{5} e^{{33.82d_{s} }}\) 0.7805
3 60 \(I_{e}\) \(I_{e} = 1.95 \times 10^{ - 6} e^{{ - 21.81d_{s} }}\) 0.9688
\(\beta\) \(\beta = 1.01 \times 10^{6} e^{{30.66d_{s} }}\) 0.9905
4 80 \(I_{e}\) \(I_{e} = 1.15 \times 10^{ - 6} e^{{ - 15.10d_{s} }}\) 0.9781
\(\beta\) \(\beta = 1.78 \times 10^{5} e^{{48.84d_{s} }}\) 0.9549
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