Experimental Study on the Escape Velocity of Miners during Mine Fire Periods
Table 5
Excluded variables .
Model
Beta In
t
Sig.
Partial Correlation
Collinearity Statistics
Tolerance
Dip ⩽ 0
Dip ⩾ 0
Dip ⩽ 0
Dip ⩾ 0
Dip ⩽ 0
Dip ⩾ 0
Dip ⩽ 0
Dip ⩾ 0
Dip ⩽ 0
Dip ⩾ 0
1
Roadway type
-0.103
-0.168
-1.183
-1.534
0.247
-0.274
-0.222
-0.274
0.947
0.660
Roadway section area
0.225
0.242
2.998
2.982
0.006
0.484
0.500
0.484
1.000
0.987
Average wind velocity
-0.013
0.178
-0.154
2.069
0.879
0.359
-0.030
0.359
1.000
0.997
2
Roadway type
-0.183
-0.236
-2.482
-2.542
0.020
-0.433
-0.438
-0.433
0.871
0.634
Average wind velocity
-0.001
0.154
-0.007
1.985
0.994
0.351
-0.001
0.351
0.997
0.985
3
Average wind velocity
0.29
0.144
0.441
2.038
0.685
0.365
0.082
0.365
0.968
0.983
a. Dependent variable: the miner escape velocity b. Predictors in the model: (constant) the inclination of the roadway. c. Predictors in the model: (constant) the inclination of the roadway and the accessible section area of the roadway. d. Predictors in the model: (constant) the inclination of the roadway, the accessible section area of the roadway, and the type of roadway.
