Research Article
A Nonlinear Constitutive Model for Disintegrated Carbonaceous Mudstone Based on Logarithmic Functions
Table 2
Nonlinear constitutive model parameters based on logarithmic functions.
| Degree of compaction (%) | K | n | c | φ | Rf | X | J | G | F | a' |
| 90 | 274.92 | 0.2206 | 6.91 | 17.22 | 0.9299 | −11.69 | 2756.3 | 0.3495 | 0.1293 | 0.1358 | 93 | 327.57 | 0.2006 | 9.59 | 20.79 | 0.9273 | −9.80 | 2371.4 | 0.2816 | 0.2388 | 0.1564 | 96 | 340.72 | 0.3772 | 14.79 | 23.11 | 0.9206 | −4.13 | 1434.9 | 0.2670 | 0.1982 | 0.1705 |
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