Control Mechanism of Rock Burst in the Floor of Roadway Driven along Next Goaf in Thick Coal Seam with Large Obliquity Angle in Deep Well

Table 1

The location statistics of mine tremor by using microseismic monitoring.

Number	Coordinate/m			Distance from the working face	Horizon	Seismic source	Magnitude
	1	3439	4854					−955	11 m behind the working face	4 m below the floor	52 m below the upper entry	1.5
2	3393	4925	−930	45 m in front of the working face	2 m below the floor	11 m below the upper entry	1.3
3	3402	4869	−936	15 m behind the working face	8 m below the floor	17 m below the upper entry	1.3
4	3382	5004	−921	88 m in front of the working face	3 m below the floor	3 m below the upper entry	1.9
5	3478	5337	−953	260 m in front of the working face	2 m below the floor	52 m below the upper entry	1.6
6	3412	5101	−940	48 m behind the working face	5 m below the floor	14 m below the upper entry	1.6