Quantitative Calculation of Critical Depth in Typical Rockburst Mine

Table 2

Release energy by the coal-rock dynamic system in part rockburst of one coal mine.

Number	Depth of focal point (m)	Total energy of coal-rock dynamic system (J)	Basic energy of coal-rock dynamic system (J)	Released energy of coal-rock dynamic system (10^6 J)	Microseismic monitoring energy (10^6 J)
1	662	318837686	154856876	163.98	32.00
2	676	134495703	65323471	69.17	38.00
3	697	137024948	66551905	70.47	3.80
4	673	9083727	4411893	4.67	2.50
5	643	73437125	35667816	37.77	21.00
6	818	1074673691	521960288	552.71	110.00
7	580	15179125	7372378	7.81	17.00
8	540	5263827	2556598	2.71	20.00
9	697	70156774	34074575	36.08	81.00
10	670	2531922	1229734	1.30	2.90
11	627	20689740	10048839	10.64	24.00
12	667	8030928	3900557	4.13	9.40
13	655	96886360	47056919	49.83	27.00
14	550	1018885	494864	0.52	1.20
15	673	236900214	115060511	121.84	660.00
16	822	284481197	138170208	146.31	29.00
17	823	1168071829	567323006	600.75	120.00
18	698	38996382	18940226	20.06	11.00
19	720	47144244	22897577	24.25	13.00
20	694	41119941	19971622	21.15	12.00