Application of Grey Deformation Prediction Model Optimized by Double Coefficient for Tailings Dam

Table 7

Residual sequence states of vertical deformation at monitoring point 01.

Stage	Relative error/%	State
1	0.00	S3
2	−1.28	S1
3	−1.83	S1
4	1.04	S4
5	1.82	S4
6	1.60	S4
7	−0.11	S2
8	−0.62	S1