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

Table 10

Final damage parameter table of chromium-polluted red clay at 300 kPa confining pressure under different dry densities.

Chromium ion concentration (%)	Dry density (g/cm^3)	Initial deformation modulus	Final secant modulus	Damage variable
0	1.35	70.922	8.471	0.88
	1.40	152.74	15.871	0.90
	1.45	232.558	16.642	0.93
0.01	1.35	60.789	7.203	0.88
	1.40	112.465	13.383	0.88
	1.45	143.210	15.871	0.89
0.05	1.35	35.534	4.971	0.86
	1.40	75.645	10.721	0.86
	1.45	112.360	13.032	0.88
0.1	1.35	25.024	3.551	0.86
	1.40	36.942	5.245	0.86
	1.45	92.923	12.281	0.87