Numerical Simulation Study of the Strata Movement Rule of Deep Mining with the Super-Thick and Weak Cementation Overburden: A Case Study in China

Table 3

Characterization parameters of surface movement and deformation rule in deep multi-working face mining with the super-thick and weak cementation overburden.

Pillar width (m)	Strike length (m)	Mining width (m)	Width-depth ratio in the strike	Width-depth ratio in the dip	Wmax (mm)	Umax (mm)	q	b
25	2500	300	3.45	0.41	295	139	0.09	0.47
		625	3.45	0.86	1499	691	0.3	0.46
		950	3.45	1.31	3689	1596	0.61	0.43
		1275	3.45	1.76	4849	2052	0.81	0.42
		1600	3.45	2.21	4899	1958	0.82	0.4
		1925	3.45	2.65	5154	1975	0.86	0.38
		2250	3.45	3.1	5296	1957	0.88	0.37
		2575	3.45	3.55	5400	1929	0.9	0.36
25	1500	300	2.07	0.41	265	120	0.08	0.45
		625	2.07	0.86	1000	435	0.2	0.44
		950	2.07	1.31	1942	815	0.32	0.42
		1275	2.07	1.76	2748	1098	0.46	0.4
		1600	2.07	2.21	3420	1283	0.57	0.38
		1925	2.07	2.65	3652	1241	0.61	0.34
		2250	2.07	3.1	4001	1295	0.67	0.32
		2575	2.07	3.55	4207	1306	0.7	0.31