A Novel Coal Burst Criterion of Anchored Roadway Surrounding Rock under Dynamic Disturbance

Table 3

Bursting liability of Number 4 coal seam.

Slice of Number 4 coal seam	Index				Determination results
	DT (ms)	WET	KE	σc (MPa)	Class	Bursting liability
Top slice	39.80	6.49	7.73	12.57	III	Strong
Bottom slice	34.40	5.45	12.57	12.45	III	Strong