Analysis of Factors Influencing Stability of Overlying Soil Layer on Thin Bedrock Based on Crack Development-Closure Test

Table 7

Saliency detection of experimental factors and their interactions.

Factor	Sum of squares of deviations	Free degree	Average sum of squares of deviations	F Ratio	Saliency grade
Cc	SCc = 2893.388	fCc = 2	SCc/fCc = 1446.694	11.597	Highly salient influence
Cl	SCl = 750.586	fCl = 2	SCl/fCl = 375.293	3.008	Some influence
Cw	SCw = 4539.002	fCw = 2	SCw/fCw = 2269.501	18.193	Highly salient influence
ω	Sω = 436.702	fω = 2	Sω/fω = 218.351	1.750	⊗Nonsalient influence
Cc × Cl	SCc×Cl = 1186.591	fCc×Cl = 4	SCc×Cl/fCc×Cl = 296.648	2.378	Some influence
Cc × Cw	SCc×Cw = 5069.870	fCc×Cw = 4	SCc×Cw/fCc×Cw = 1267.468	10.160	Highly salient influence
Cc × ω	SCc×ω = 1120.541	fCc×ω = 4	SCc×ω/fCc×ω = 280.135	2.246	⊗Nonsalient influence
Cl × Cw	SCl×Cw = 1129.002	fCl×Cw = 4	SCl×Cw/fCl×Cw = 282.251	2.263	⊗Nonsalient influence
e	Se = S13 + S4 + S8 + S9 = 2245.472	fe = 18	Se/fe = 124.748