Research Article
Strain-Softening Characteristics of Hydrate-Bearing Sediments and Modified Duncan–Chang Model
Table 1
The test conditions for HBS specimens.
| No. | Pore pressure (MPa) | Confining pressure (MPa) | Effective confining pressure (MPa) | Hydrate saturation Sh (%) |
| S0 | 8 | 9 | 1 | 0 | 11 | 3 | 0 | 13 | 5 | 0 |
| S1 | 8 | 9 | 1 | 4.6 | 11 | 3 | 4.3 | 13 | 5 | 4.2 |
| S2 | 8 | 9 | 1 | 9.6 | 11 | 3 | 9.6 | 13 | 5 | 9.1 |
| S3 | 8 | 9 | 1 | 18.9 | 11 | 3 | 18.8 | 13 | 5 | 19 |
| S4 | 8 | 9 | 1 | 33.5 | 11 | 3 | 32.8 | 13 | 5 | 32.4 |
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