Table 1.
The existing fracture parameters of coal rock sample.
| Fracture number | Fracture type | Fracture length (mm) | Fracture width (mm) | Dip angle of fracture tip (rad) | Azimuth of fracture tip (rad) |
|---|---|---|---|---|---|
| 1 | Transverse | 12 | 0.07 | 0.43 | 0 |
| 2 | Longitudinal | 13 | 0.07 | 1.28 | 0 |