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

Table 3

Model Summary.

Model	R		R-Squared		Adjusted R-Squared		Std. Error of the estimate
	Dip ⩽ 0	Dip ⩾ 0	Dip ⩽ 0	Dip ⩾ 0	Dip ⩽ 0	Dip ⩾ 0	Dip ⩽ 0	Dip ⩾ 0
1	0.893	0.868	0.798	0.753	0.791	0.745	0.264	0.313
2	0.921	0.901	0.848	0.811	0.837	0.798	0.233	0.279
3	0.937	0.920	0.877	0.847	0.863	0.830	0.213	0.256

a. Predictors: (constant) the inclination of the roadway.
b. Predictors: (constant) the inclination of the roadway and the accessible section area of the roadway.
c. Predictors: (constant) the inclination of the roadway, the accessible section area of the roadway, and the type of roadway.