A New Dynamic Prediction Model for Underground Mining Subsidence Based on Inverse Function of Unstable Creep

Table 2

Time influence parameters of different monitoring points.

Monitoring points	Improved Knothe model			Knothe model
	C/(d^−n)	n	R^2	c/(10^−3·d^−1)	R^2
Z29	2.24 × 10^−7	2.59	0.992	2.45	0.787
Z37	9.54 × 10^−9	3.09	0.993	2.15	0.715
Z41	3.30 × 10^−10	3.63	0.984	1.97	0.663
Z44	3.17 × 10^−10	3.60	0.979	1.78	0.625
Z45	2.33 × 10^−10	3.63	0.979	1.69	0.607
Z47	1.42 × 10^−10	3.69	0.973	1.59	0.586
Z50	0.87 × 10^−10	3.75	0.985	1.48	0.562
Z53	0.89 × 10^−10	3.79	0.986	1.31	0.529