Investigation on Mining-Induced Floor Water Inrush from Column and Its Control Based on Microseismic Monitoring

Table 1

Incomplete statistics of serious water inrush hazards in Handan-Xingtai mining area.

Number	Coal mine	Date	Maximum water inrush rate (m^3/h)	Water inrush types
1	Wutongzhuang	1995-12-3	34000	Fault
2	Wutongzhuang	2001-3-10	156	Collapse column
3	Wutongzhuang	2002-6-7	480	Fault
4	Wutongzhuang	2002-3-21	120	Fault
5	Wutongzhuang	2000-5-14	130	Collapse column
6	Wutongzhuang	2006-1-26	3900	Fault
7	Wutongzhuang	2014-7-25	11250	Collapse column
8	Huangsha	2010-11-19	6000	Fault
9	Huangsha	2011-12-11	24000	Fault and collapse column
10	Huangsha	1996-12-19	1320	Mining activities
11	Huangsha	2010-11-19	6000	Fault
12	Jiulong	2009-1-8	7200	Collapse column
13	Jiulong	2007-9-29	5400	Collapse column
14	Jiulong	2007-10-21	720	Collapse column
15	Jiulong	2009-1-1	900	Collapse column
16	Jiulong	2009-1-11	7200	Collapse column
17	Xin’an	2010-11-19	6000	Fault
18	Xin’an	2011-12-11	24000	Collapse column
19	Xin’an	2011-12-11	2600	Fault and collapse column
20	Ruifeng	2002-9-20	600	Fault
21	Ruifeng	1977-11	120	Collapse column
22	Ruifeng	1932-8	480	Fault
23	Ruifeng	1942-6-13	4080	Fault
24	Dongpang	2003-4-12	70000	Collapse column
25	Dongpang	2010-11-15	2500	Mining activities
26	Niuerzhuang	2004-9-26	5160	Fault
27	Sunzhuang	1996-11-24	9000	Fault
28	Xingdong	2011-4-13	330	Mining activities
29	Shenjiazhuang	2012-5-26	740	Fault
30	Lincheng	2006-12-16	3600	Fault