Table 3 Parameters of joint creep model.
From: Solution of plastic zone range in soft rock tunnel surroundings considering joint damage
Joint inclination angle | \(K\)/GPa | \(G_{0}\)/GPa | \(G_{1}\)/GPa | \(G_{2}\)/GPa | \(\eta_{1}\)/GPa·h | \(\eta_{2}\)/GPa·h | \(\eta_{3}\)/GPa·h | \(a\) | \(P_{0}\) | R2 |
|---|---|---|---|---|---|---|---|---|---|---|
0° | 29.67 | 18.67 | 82.89 | 79.66 | 44.92 | 214.65 | 17.48 | 1.90 | 1046.17 | 0.9956 |
45° | 16.73 | 10.53 | 51.66 | 52.85 | 19.73 | 250.42 | 9.29 | 0.43 | 1586.54 | 0.9982 |
90° | 25.15 | 14.37 | 132.88 | 131.65 | 56.74 | 1090.00 | 36.95 | 1.54 | 1106.48 | 0.9931 |
