Optimization and Practice for Partition Pressure Relief of Deep Mining Roadway Using Empty-Hole and Deep-Hole Blasting to Weaken Coal

Table 1

Fault parameters of 3200 working face.

Fault name	Drop (m)	Stress concentration factor	Distance from fault (m)	Unilateral influence range (m)
DF242	24	1.4	43	80
DF240	10	1.3	15	60
DF236	7	1.3	38	60