Study on the Parameter Equation of Coal and Gas Outburst Hole

Table 5

Parameters for 15 CGOH.

Accident no.	Hole volume (m^3)	Coal quantity (t)	Calculated density (m^3/t)	Throw distance (m)
2	0.31	117.7	379.68	11.5
17	17.415	327	18.68	165
18	342.7	2619	7.64	160
19	8.7	110	12.64	25
26	55.5	218	3.93	50
30	201.06	150	0.75	30.3
31	3.06	180	58.82	—
35	12.15	970	79.84	113
36	12.57	60	4.77	7
41	6.28	81.9	13.04	—
42	3.27	238	72.78	19
44	3.14	189	60.19	35
61	4.36	1072	245.87	193
63	7.07	308	43.56	64
72	11.02	540	49	62.95