Experimental Study and Damage Model Study of Rock Salt Subjected to Cyclic Loading and Cyclic Creep

Table 3

Fitting results of parameters α, β, c, and m.

No.	Maximum stress ratio (%)	Parameter				R^2
		α	β	c	m
X2	75	0.341	0.051	1.001	0.321	0.984
X3	80	0.396	0.090	1.010	0.469	0.990
X4	85	0.543	0.189	1.090	1.084	0.999
R1	60	0.694	0.138	1.195	0.605	0.979
R2	65	0.891	0.077	1.268	2.400	0.998