|
Core, section
|
Fracture angle
(°)
|
(MPa)
|
Axial strain range
of the plateau
(%)
|
q/p
|
(MPa)
|
Friction coefficient
|
||
|---|---|---|---|---|---|---|---|---|
|
Axial effective stress
|
Confining effective stress
|
|||||||
|
Normal stress
|
Shear stress
|
|||||||
| 190-1173A- |
|
|
|
|
|
|
|
|
| 55X-5 (h) | 30 | 5.5 | 2.4 | 3.2–3.6 | 0.9 | 3.1 | 1.3 | 0.40 ± 0.15 |
| 55X-5 (v) | 35 | 4.9 | 2.4 | 3.1–3.6 | 0.77 | 3.2 | 1.2 | 0.37 ± 0.15 |
| 55X-5 (v) | 35 | 5.2 | 2.4 | 5.1–5.2 | 0.84 | 3.3 | 1.3 | 0.40 ± 0.15 |
Note: v = vertical, h = horizontal. q/p = deviatoric stress/mean effective stress ratio.