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 |