Effect of Chromium Ion on the Strength Characteristics and Damage Law of Red Clay

Table 5

variance analysis table of the degree of influence of each influencing factor on the peak deviator stress (without considering the interaction effect).

Origin	Type 3 sum of squares	Degree of freedom	Mean square	The value of	Significance
Chromium ion concentration	105118.73	3	35039.58	36.40	Level I
Initial dry density	158814.29	2	79407.15	105.15	Level I
Confining pressure	40270.56	3	13423.52	17.78	Level II
Error	29452.40	39	755.19	—	—
Sum	1967219.00	48	-	—	—