Table 2 Permeability coefficient of various tailings materials under different chemical conditions.

From: Seepage field characteristic and stability analysis of tailings dam under action of chemical solution

Conditions

Damming materials

Permeability coefficient (cm/s)

1

Original sample

Tailing silty sand

3.57·10–4

Tailing silty soil

2.29·10–4

Tailing silty clay

5.74·10–6

2

After chemical solution (pH = 3) treatment for 120 days

Tailing silty sand

1.57·10–4

Tailing silty soil

0.94·10–4

Tailing silty clay

3.78·10–6

3

After chemical solution (pH = 5) treatment for 120 days

Tailing silty sand

1.96·10–4

Tailing silty soil

1.06·10–4

Tailing silty clay

4.11·10–6

4

After chemical solution (pH = 9) treatment for 120 days

Tailing silty sand

0.886·10–4

Tailing silty soil

0.61·10–4

Tailing silty clay

3.37·10–6

5

After chemical solution (pH = 12) treatment for 120 days

Tailing silty sand

0.62·10–4

Tailing silty soil

0.39·10–4

Tailing silty clay

3.04·10–6

Back to article page