Influence of Humidity State on Dynamic Resilient Modulus of Subgrade Soils: Considering Repeated Wetting-Drying Cycles

Table 2

The stress-loading sequence in this study.

No.	Confining pressure σ3 (kPa)	Contact pressure 0.2 σ3 (kPa)	Deviator stress σd (kPa)	Principal stress ratio σ1/σ3	Number of cycles
0 (preloading)	30	6	55	2.8	2000
1	60	12	30	1.5	100
2	40	9	30	1.8	100
3	30	6	30	2.0	100
4	15	3	30	3.0	100
5	60	12	55	1.9	100
6	40	9	55	2.4	100
7	30	6	55	2.8	100
8	15	3	55	4.7	100
9	60	12	75	2.3	100
10	40	9	75	2.9	100
11	30	6	75	3.5	100
12	15	3	75	6.0	100
13	60	12	105	2.8	100
14	40	9	105	3.6	100
15	30	6	105	4.5	100
16	15	3	105	8.0	100