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

Table 6

Prediction results (extrapolated value) of monitoring points 02–06 in stage 9.

Monitoring content	Monitoring point	GM (1,1)	GM-LT	GM-WC
		Relative error/%	Relative error/%	Relative error/%
Vertical deformation/mm	SZY-01	−1.85	−3.19	−1.10
	SZY-02	−1.97	−3.39	−1.43
	SZY-03	−1.67	−3.11	−0.84
	SZY-04	−1.71	−3.07	−1.04
	SZY-05	−1.58	−2.97	−1.27
	SZY-06	−1.49	−2.94	−1.18
Transverse deformation/mm	CXY-01	−3.89	−8.59	−2.91
	CXY-02	−1.51	−5.72	−1.03
	CXY-03	−2.95	−7.53	−2.17
	CXY-04	−1.02	−5.00	−0.31
	CXY-05	−2.99	−7.90	−1.83
	CXY-06	−0.57	−4.86	0.14
Seepage pressure/kPa	SYJ-01	−11.14	−10.51	−10.26
	SYJ-02	−10.33	−10.04	−9.56
	SYJ-03	−11.13	−10.50	−10.25
	SYJ-04	−10.01	−9.71	−9.25
	SYJ-05	−10.92	−10.31	−10.04
	SYJ-06	−10.81	−10.54	−10.04