Table 2 Parameters of joint damage creep model.

From: Solution of plastic zone range in soft rock tunnel surroundings considering joint damage

\(K\)\(/{\text{GPa}}\)

\(G_{0}\)\(/{\text{GPa}}\)

\(G_{1}\)\(/{\text{GPa}}\)

\(G_{2}\)\(/{\text{GPa}}\)

\(\eta_{1}\)\(/\left( {{\text{GPa}} \cdot {\text{h}}} \right)\)

\(\eta_{2}\)\(/\left( {{\text{GPa}} \cdot {\text{h}}} \right)\)

\(\eta_{3}\)\(/\left( {{\text{GPa}} \cdot {\text{h}}} \right)\)

\(a\)

\(P_{0}\)

16.73

10.53

51.66

52.85

19.73

250.42

92.864

0.426

1586.54