Research Article
A Nonlinear Creep Model of Rock Salt and Its Numerical Implement in FLAC3D
Figure 2
The -direction (vertical) displacement nephogram for the test sample under different stress levels.
| (a) Axial pressure 20 MPa |
| (b) Axial pressure 25 MPa |
| (c) Axial pressure 30 MPa |
| (d) Axial pressure 37 MPa |