Stability Analysis of Downstream Dam Expansion Tailings Pond

Table 1

Duncan–Chang model parameters of each component in tailing pond area.

Name	c (kPa)	φ (°)	K	n	Rf	Kb	m
Initial dam	0.0	28.0	800	0.36	0.72	320	0.25
Subdam	12.1	29.0	150	0.51	0.8	65	0.21
Tailing silt	21.4	24.6	180	0.5	0.81	80	0.21
Tail silt clay	33.6	21.6	160	0.5	0.81	70	0.21