Table 3 Parameter values of coal rock damage constitutive model.
σ3/MPa | T/℃ | W/% | E/GPa | λ | u | q | n | εp/% | σp/MPa | εcr/% |
|---|---|---|---|---|---|---|---|---|---|---|
0 | 25 | 0 | 3.68 | 0.32 | 0.20 | 0.8 | 6 | 0.47 | 12.4 | 0.54 |
5 | 25 | 0 | 3.71 | 0.25 | 0.25 | 0.8 | 5 | 0.49 | 13.2 | 0.56 |
10 | 25 | 0 | 3.77 | 0.40 | 0.30 | 0.8 | 4 | 0.48 | 15.3 | 0.55 |
15 | 25 | 0 | 3.88 | 0.31 | 0.35 | 0.8 | 5 | 0.42 | 16.8 | 0.56 |
0 | 25 | 0 | 3.39 | 0.30 | 0.20 | 0.8 | 6 | 0.60 | 13.7 | 0.77 |
0 | 60 | 0 | 3.30 | 0.28 | 0.25 | 0.8 | 7 | 0.62 | 13.1 | 0.72 |
0 | 90 | 0 | 3.28 | 0.35 | 0.30 | 0.8 | 4 | 0.74 | 12.4 | 0.81 |
0 | 120 | 0 | 3.24 | 0.40 | 0.35 | 0.8 | 6 | 0.73 | 10.8 | 0.78 |
0 | 25 | 0 | 5.00 | 0.34 | 0.20 | 0.8 | 5 | 0.54 | 19.3 | 0.60 |
0 | 25 | 2 | 4.71 | 0.29 | 0.25 | 0.8 | 8 | 0.58 | 16.1 | 0.64 |
0 | 25 | 4 | 4.20 | 0.31 | 0.30 | 0.8 | 6 | 0.47 | 13.3 | 0.53 |
0 | 25 | 6 | 3.61 | 0.38 | 0.35 | 0.8 | 4 | 0.43 | 12.6 | 0.64 |
