Evolution Mechanism of Interconnected Vertical Fractures in the Overburden of Longwall Coal Mining

Table 5

Values in water inrush and normal areas in 31401 working face of Bulianta Coal Mine.

Type	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)
Water inrush	5.92	8.61	1.1	0.86	25.21	1.009	0.23	4.40	32.70	0.14	6.52
Normal	4.78	11.53	1.2	2.36	83.63	1.009	0.75	1.67	15.3	0.11	6.13