Method

Lft 41/4

Kvfd 96/4

Fbmd 17/0.5^a

Fbmd’ 43/1^b

Constant head seepage cell, k_lab (×10⁻⁷ m/s)

k_lab = 5.93

k_lab = 0.69

-

k_lab = 1.71 (scalped sample)

Double-ring infiltrometer infiltration capacity, f, “permeability” k_{in situ} (×10⁻⁷ m/s)

k_{in situ} ≈ 7.5

(+27% of k_lab)

k_{in situ} ≈ 0.6

(−10% of k_lab)

k_{in situ} ≈ 17

(full sample)

-

Hazen’s formula, Equation (1) empirical permeability,

k_est (×10⁻⁷ m/s).

k_est = 25.6

@ C=0.01;

D₁₀ = 0.016

(+430% of k_lab)

k_est = 2.0

@ C = 0.01;

D₁₀ = 0.0045

(+290% of k_lab)

k_est = 40

@ C = 0.01;

D₁₀ = 0.02

k_est = 6.4

@ C = 0.01;

D₁₀ = 0.008

(+376% of k_lab)