Experimental Study on Main Physical Parameters Controlling Shear Strength of Unsaturated Loess

Table 2

Properties and direct shear test results of the loess.

Water content (%)	Density (g/cm^3)	Dry density (g/cm^3)	Void ratio	Internal friction angle (°)	Cohesion (kPa)
Intact loess
0	1.29	1.29	1.11	35.95	30.60
5.8	1.35	1.27	1.14	29.31	25.20
10	1.4	1.27	1.14	26.24	21.92
15	1.472	1.28	1.125	24.81	18.70
20	1.557	1.28	1.125	22.60	16.90
25	1.642	1.28	1.125	19.42	13.80
35	1.728	1.28	1.125	18.83	13.00
Remolded loess
0	1.29	1.29	—	32.2	23.05
5.8	1.35	1.27	—	25.8	20.15
10	1.4	1.27	—	22.97	17.6
15	1.472	1.28	—	20.89	15.12
20	1.557	1.28	—	19.62	12.89
25	1.642	1.28	—	16.80	11.64
35	1.728	1.28	—	15.77	10.95