Table 1 Physical and mechanical parameters of the different joint combination sandstone samples.
No | Rock type | Joint inclination (°) | Thickness (mm) | Width (mm) | Length (mm) | Uniaxial compressive strength (MPa) | Young’s modulus (GPa) |
|---|---|---|---|---|---|---|---|
1 |
| 0 | 24.72 | 60.15 | 119.82 | 33.25 | 5.91 |
2 |
| 30 | 24.91 | 60.25 | 119.95 | 20.15 | 2.94 |
3 |
| 60 | 24.86 | 60.45 | 119.86 | 22.01 | 4.93 |
4 |
| 90 | 25 | 59.6 | 120.05 | 28.93 | 5.01 |
1–1 |
| 0/0 | 49.18 | 59.61 | 119.11 | 33.93 | 6.19 |
1–2 |
| 0/30 | 50.11 | 60.70 | 120.07 | 28.57 | 4.65 |
1–3 |
| 0/60 | 49.37 | 60.21 | 120.00 | 26.88 | 4.11 |
1–4 |
| 0/90 | 50.05 | 59.8 | 119.4 | 22.16 | 3.49 |







