Orthogonal Analysis and Numerical Simulation of Rock Mechanics Parameters in Stress Field of Shaft Heading Face

Table 3

Variance analysis for the stress concentration zone.

Factor	Variance square sum	Freedom	Mean square	F
Correction model	96.476	18	5.360	7.010	0.012
E	0.726	3	0.242	0.316	0.814
Φ	0.258	3	0.086	0.113	0.950
C	0.694	3	0.231	0.302	0.823
Μ	43.475	3	14.492	18.953	0.002
H	0.917	3	0.306	0.400	0.758
R	50.406	3	16.802	21.974	0.001
Error	4.588	6	0.765	—	—
Total	6433.404	25	—	—	—