Study on Prediction of Coal-Gas Compound Dynamic Disaster Based on GRA-PCA-BP Model

Table 1

Partial initial data of coal-gas compound dynamic disaster in No. 8 coal mine.

Number	/m							/m	/m	/°		/mmHg		Disaster or not
1	535	0	0	0	0.5	1.47	3	5.4	0.8	11	0.06	11.23	0.32	1
2	554	0	0.08	0	1	1.47	3	5.4	0.7	11	0.05	15.47	0.28	1
11	566	1	0	0	0.5	1.78	2	3.5	0	16	0	7.93	0.57	1
12	566	1	0	0	0.5	1.78	2	3.5	0	16	0	9.00	0.81	1
20	484	0	0	0	0.5	2.13	3	3.5	0	10	0	12.56	0.29	1
21	530	3	0	0	1	1.72	3	4.3	0.65	24	0.11	11.48	0.67	1
29	540	0	0	0.13	0.5	2.03	3	4.7	1.2	11	0.10	12.05	0.27	1
30	457	0	0	0.14	0.5	1.07	4	3.5	0.4	31	0.06	5.09	0.15	0
38	510	0	0	0	0.5	1.54	3	4.5	1.5	20	0.13	12.74	0.26	1
39	800	1	0.17	0.39	0.5	2.03	3	3.0	0	11	0	15.89	0.18	0

Note: In the column “Disaster or not”, the “1” represents that the disaster occurs, and the “0” represents the disaster does not occur.