Experimental Study on the Triaxial Compression Properties of Coarse-Grained Filling Soil under Drying–Wetting Cycles

Table 5

Secant modulus and damage variable under a given number of drying–wetting cycles.

Sample	100 kPa		200 kPa		300 kPa		400 kPa
	(MPa)		(MPa)		(MPa)		(MPa)
	17.75	0	15.81	0	12.95	0	15.47	0
	13.76	0.22	12.16	0.23	11.96	0.08	14.51	0.06
	12.37	0.30	14.57	0.08	11.86	0.08	13.41	0.13
	10.8	0.39	11.84	0.25	9.55	0.26	9.36	0.40
	8.35	0.53	11.07	0.30	9.09	0.30	8.30	0.46
	8.67	0.51	10.89	0.31	8.57	0.34	8.45	0.45
	8.06	0.54	10.37	0.34	8.02	0.38	8.11	0.47
	7.35	0.59	9.65	0.39	7.71	0.40	7.52	0.51