Table 4: Modified parameters of piecewise fitting.

Dry density/g⋅cm−3 Segment less than 0.65 in saturationSegment above 0.65 in saturation
/cm2⋅min−1/cm2⋅min−1

1.250.390.9211.3110.830.998
1.350.720.9400.4110.510.995
1.450.960.9728.220.990
1.551.640.9737.290.994
1.652.000.9627.620.995