Advanced Computational Methods for Mitigating Shock and Vibration Hazards in Deep Mines Gas Outburst Prediction Using SVM Optimized by Grey Relational Analysis and APSO Algorithm

Table 1

Part sample data of #3 coal seam 31004 driving face.

Number										Risk
1	3.00	15.50	0.36	7.78	0.30	3.40	36.00	351.00	2.40	1
2	3.00	15.70	0.36	7.76	0.20	3.60	62.00	366.00	2.40	1
3	2.00	15.75	0.36	7.81	0.30	3.20	78.00	366.00	2.40	1
4	2.00	15.56	0.36	7.30	0.30	3.80	47.00	367.00	2.40	1
5	3.00	15.80	0.36	7.05	0.27	3.00	21.00	364.00	2.40	1
6	3.00	18.55	0.36	9.92	0.30	3.4	15.00	363.00	2.60	2
7	3.00	15.69	0.36	7.46	0.28	3.40	35.00	365.00	2.40	1
8	3.00	17.66	0.28	9.32	0.35	0.31	26.00	366.00	2.10	2
9	3.00	17.56	0.36	10.06	0.21	0.32	15.00	366.00	2.10	2
10	3.00	16.69	0.30	13.88	0.38	3.4	9.00	368.00	2.10	3

Note: means coal destruction type; means gas release initial velocity; means coal firmness coefficient; means coal seam gas content; means gas desorption index-K1; means drill cuttings volume; means geological structure zone distance; means coal seam depth; means coal seam thickness; “Risk” means the gas outburst risk.