Mechanism and Energy Evolution Characteristics of Coal Burst in Mining Thick, Deep, and Large Inclined Coal Seams: A Case Study from a Chinese Coal Mine

Table 2

Roof pressure relief parameters of working face.

Drilling number	Drilling depth (m)	Explosive quantity (kg)	Elevation angle (°)	Loaded length (m)	Hole sealing length (m)	Drilling diameter (mm)
1#	36	48	75	12	16	63
2#	50	80	60	20	20	63
3#	36	48	50	12	15	63
4#	50	60	20	15	18	63
5#	100	80	-10	20	35	63
6#	110	80	-20	20	35	63