Solving Saturated/Unsaturated Water Flow Problems - Unsaturated Soil Mechanics in Engineering Practice - page 424

0.5

0.4

θ s = 0.495
a f = 17.05 kPa
n f = 1.17
m f = 0.729
ψ r = 367 kPa

0.3

0.2

0.1

0.0

10 6 0 1 10 100 1000 10,000 100,000

Soil suction, kPa

(a)

10 − 3
10 − 4
10 − 5
10 − 6
10 − 7
10 − 8
10 − 9
10 − 10
10 − 11
10 − 12
10 − 13
10 − 14
10 − 15
10 − 16

Soil

Soil liner

10 6 0 1 10 100 1000 10,000 100,000

Soil suction, kPa

(b)

0.012

0.010

0.008

0.006

0.004

0.002

0.000

10 6

0 1 10 100 1000 10,000 100,000

Soil suction, kPa

(c)

Figure 8.56 Permeability and water storage function for analyzing unsteady-state seepage below
a lagoon. (a) SWCC. (b) Permeability function. (c) Water storage function.