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

Table 11

Comparison and verification of stage 9 prediction results (extrapolated value).

Monitoring content	Monitoring point	GM (1, 1)	GM-LT	GM-WC	GDPM-DC	Difference ofrelative error/%
		Relative error/%	Relative error/%	Relative error/%	Relative error/%
Vertical deformation/mm	SZY-01	−1.85	−3.19	−1.1	−0.63	1.42
	SZY-02	−1.97	−3.39	−1.43	−0.98	1.28
	SZY-03	−1.67	−3.11	−0.84	−0.29	1.58
	SZY-04	−1.71	−3.07	−1.04	−0.58	1.36
	SZY-05	−1.58	−2.97	−1.27	−1.00	0.94
	SZY-06	−1.49	−2.94	−1.18	−0.65	1.22
Transverse deformation/mm	CXY-01	−3.89	−8.59	−2.91	−0.46	4.67
	CXY-02	−1.51	−5.72	−1.03	−0.73	2.02
	CXY-03	−2.95	−7.53	−2.17	−0.59	3.63
	CXY-04	−1.02	−5.00	−0.31	−0.35	1.76
	CXY-05	−2.99	−7.90	−1.83	−0.35	3.89
	CXY-06	−0.57	−4.86	0.14	−0.07	1.79
Seepage pressure/kPa	SYJ-01	−11.14	−10.51	−10.26	−3.45	7.19
	SYJ-02	−10.33	−10.04	−9.56	−3.25	6.73
	SYJ-03	−11.13	−10.50	−10.25	−3.25	7.38
	SYJ-04	−10.01	−9.71	−9.25	−2.96	6.70
	SYJ-05	−10.92	−10.31	−10.04	−2.79	7.63
	SYJ-06	−10.81	−10.54	−10.04	−3.71	6.75