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

Table 5

Predicted seepage pressure of monitoring point 01 using different models.

Stage	Measured value/mm	GM (1, 1)		GM-LT		GM-WC
		Predicted value/mm	Relative error/%	Predicted value/mm	Relative error/%	Predicted value/mm	Relative error/%
1	53.50	53.500	0.00	53.500	0.00	53.500	0.00
2	78.99	89.421	−13.21	89.569	−13.39	88.729	−12.33
3	94.80	86.578	8.67	86.564	8.69	85.905	9.38
4	89.70	83.825	6.55	83.681	6.71	83.171	7.28
5	82.05	81.159	1.09	80.915	1.38	80.524	1.86
6	77.97	78.578	−0.78	78.261	−0.37	77.962	0.01
7	75.42	76.080	−0.87	75.713	−0.39	75.481	−0.08
8	70.33	73.660	−4.74	73.266	−4.17	73.079	−3.91
9	64.17	71.318	−11.14	70.916	−10.51	70.753	−10.26