Research Article
Deformation and Strength Characteristics of Structured Clay under Different Stress Paths
Table 4
Test results of structured clay under different stress paths.
| | Consolidation confining pressure/KPa | Stress path slope/ɳ | Stress path type | Failure deviatoric stress/qf | Failure pore pressure/uf | Failure strain εa/% |
| | 100 | 3.0 | INP | 122.1 | 30.0 | 1.92 | | ∞ | KCP | 129.7 | 25.7 | 2.5 | | −1.5 | DEP | 120.9 | −38.5 | 2.2 | | 1.0 | DEP | 95.1 | −64.0 | 3.6 | | 3.0 | DEP | 101.9 | −39.3 | 5.3 |
| | 200 | 3.0 | INP | 149.2 | 51.3 | 2.3 | | ∞ | KCP | 167.4 | 58.7 | 2.9 | | −1.5 | DEP | 158.0 | −8.0 | 2.8 | | 1.0 | DEP | 127.8 | −60.0 | 5.2 | | 3.0 | DEP | 141.7 | −29.4 | 6.2 |
| | 300 | 3.0 | INP | 179.9 | 92.0 | 3.3 | | ∞ | KCP | 195.6 | 123.0 | 4.14 | | −1.5 | DEP | 199.1 | 3.1 | 3.2 | | 1.0 | DEP | 158.1 | −57.0 | 6.6 | | 3.0 | DEP | 171.8 | −13.4 | 6.96 |
| | 400 | 3.0 | INP | 225.4 | 112.7 | 4.4 | | ∞ | KCP | 237.2 | 170.8 | 4.3 | | −1.5 | DEP | 230.9 | 34.0 | 4.2 |
| | 500 | 3.0 | INP | 266.1 | 138.5 | 4.8 | | ∞ | KCP | 287.4 | 219.5 | 4.93 | | −1.5 | DEP | 258.9 | 65.0 | 4.4 |
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