Mechanism and Control of Water–Rock Coupling-Induced Disaster when Mining below the Unconsolidated Confined Aquifer

Table 3

Pressure on the key strata and the lower water-resisting layer.

Time step ()	Overlying load (MPa)
	Key strata	Lower water-resisting layer
250	1.36	7.54
500	0.66	4.58
1000	0.78	4.40
2000	0.71	4.34
4000	0.79	4.34
8000	5.41	4.47
Premining	12.28	11.29