Table 2.

Material parameters for tailings pond seepage calculations.

Layer of rock and soil	Permeability coefficient k (cm/s)
	Vertical direction Kx	Horizontal direction Ky
Initial dam	5.0 × 10−2	5.0 × 10−2
Late-stage waste rock dam	5.0 × 10−2	5.0 × 10−2
Impermeable lining layer	1.3 × 10−3	1.3 × 10−3
Tailed fine sand	3.75 × 10−4	3.75 × 10−4
Tail silty sand	1.25 × 10−4	1.25 × 10−4
Tail loam	3.0 × 10−6	3.0 × 10−6
Tail silty clay	1.0 × 10−7	1.0 × 10−7
Auxiliary dam	5.0 × 10−2	5.0 × 10−2