Table 2 The measured effective strength parameters and the relevant indexes for Q2 loess
Specimen no. | Moisture content | Volumetric moisture content | Matric suction | Total effective cohesion | Effective friction angle |
|---|---|---|---|---|---|
w/(%) | θ w /(%) | U a -u w /(kPa) | c′/(kPa) | φ′/(°) | |
T1 | 5 | 7.7 | 200.5 | 74.6 | 25.5 |
T2 | 10 | 15.4 | 67.0 | 27.0 | 24.8 |
T3 | 15 | 23.1 | 28.7 | 16.7 | 25.0 |
T4 | 20 | 30.8 | 10.6 | 6.8 | 24.9 |
T5 | 25 | 38.5 | 0.2 | 3.8 | 24.5 |
T6 | 30 | 46.2 | 0.0 | 3.5 | 25.2 |
Strength parameters | φ b = 19.5° | c′ 0 = 3.50 kPa | φ′ = 25.0° | ||