Unified Mechanism of Rock Burst Induced by Coal Mine Earthquake and Its Activity and Response Characteristics

Table 1

Relationship between the working face footage and coal mine earthquake.

Date	Footage on the day of mining earthquake (m)	Accumulative footage (m)	Footage range (m)	Footage period (m)
2015.2.12	6.75	115.3	31–131	100
2015.2.26	7.35	179.9	131–231	100
2015.3.4	5.65	214
2015.3.5	6.25	220.3
2015.3.30	1.45	299.3	231–331	100
2015.5.2	4.75	371.4	331–431	100
2015.5.8	4.5	379.5
2015.5.21	2.25	400.5
2015.5.26	3.75	412
2015.6.9	3.5	423.5
2015.6.10	6	429.5
2015.6.14	4	445	431–481	50
2015.6.21	1.8	457.9
2015.7.7	1.25	484.3	481–531	50
2015.7.8	2.75	487
2015.7.14	3.25	503.8
2015.7.25	3.5	542	531–581	50
2015.7.27	5	554.3
2015.8.27	1.5	661.5	631–681	50
2015.8.30	6	676.5
2015.9.03	4.5	693.7	681–731	50
2015.9.07	0.5	704.5
2015.9.23	3.5	753.5	731–781	50
2015.10.06	4	811.3	781–831	50
2015.10.09	4.5	821.8