Table 2 The measured points of failure at the stress space for the sandstone (recalculated values)24.
No. samples | Confining pressure (σ3 = σ2) (MPa) | Axial pressure (σ1) (MPa) |
---|---|---|
I | 0 | 70 |
II | 28 | 235 |
III | 56 | 318 |
IV | 157 | 491 |
V | 251 | Min. 717 |
No. samples | Confining pressure (σ3 = σ2) (MPa) | Axial pressure (σ1) (MPa) |
---|---|---|
I | 0 | 70 |
II | 28 | 235 |
III | 56 | 318 |
IV | 157 | 491 |
V | 251 | Min. 717 |