Preliminary Study on High-Energy and Low-Energy Microfracture Event Evolution Characteristics in the Development Process of Rock Failure

Table 1

Mining schedule, No. 22517 working face of Dongjiahe Coal Mine [15].

Date (year/month/day)	The mining face (pitch distance)
2014/12/23	1005 m
2015/01/09	981 m
2015/01/19	942 m
2015/01/30	917 m
2015/02/09	885 m
2015/02/15	856 m
2015/02/27	847 m
2015/03/09	803 m
2015/03/19	779 m
2015/03/30	760 m
2015/04/09	714 m
2015/04/18	700 m
2015/04/29	694 m
2015/05/08	688 m
2015/05/19	681 m
2015/05/30	750 m
2015/06/09	745 m
2015/06/19	736 m
2015/06/29	730 m
2015/07/09	720 m
2015/07/18	677 m
2015/07/30	665 m
2015/08/08	657 m
2015/08/15	648 m
2015/08/19	642 m
2015/08/30	628 m
2015/09/08	615 m
2015/09/19	603 m
2015/09/29	592 m
2015/10/09	578 m