Experimental Study on the Escape Velocity of Miners during Mine Fire Periods

Table 7

Error analysis of the mathematical models.

No.	roadway name	Dip/°	Escape velocity; m/s	Regression equation:		Regression equation:
				predicted value m/s	Error value/%	predicted value m/s	Error value/%
1	+250-+450 auxiliary shaft slope	27.5	1.64	—	—	1.78	8.66
2	+820 fifth west cross drift	0	2.96	2.70	8.71	2.93	0.96
3	+820 fifth west cross drift	0	2.79	2.70	3.15	2.93	5.07
4	+820 roof road of north cross drift	0	2.82	2.72	3.61	2.95	4.57
5	+820 roof road of north cross drift	0	2.76	2.72	1.51	2.95	6.84
6	+570 seventh west cross drift	0	2.64	2.52	4.48	2.74	3.68
7	+570 seventh west cross drift	0	2.58	2.52	2.26	2.74	6.09
8	+150 down crossheading of second face	-16.1	1.85	1.84	0.93	—	—
9	+150 down crossheading of second face	16.1	2.16	—	—	2.02	6.30
10	+150 up crossheading of second face	-12.3	2.02	2.17	7.62	—	—
11	+150 up crossheading of second face	12.3	2.25	—	—	2.38	5.86
12	+150 east level roadway	0	2.88	2.76	4.30	2.99	3.81
13	+150 east level roadway	0	2.82	2.76	2.26	2.99	6.02
14	+150 mining section east roadway	0	2.64	2.55	3.55	2.76	4.68
15	+150 mining section east roadway	0	2.67	2.55	4.64	2.76	4.64
16	+700 second west cross drift	0	2.81	2.67	5.06	2.89	3.01
17	+700 second west cross drift	0	2.73	2.67	2.28	2.89	6.03
18	+450 haulage roadway	0	2.74	2.59	5.46	2.81	2.59
19	+450 haulage roadway	0	2.62	2.59	1.13	2.81	7.29