Research Article
A Bursting Liability Evaluation Method Based on Energy Transfer
Table 1
Standard for classification of coal bursting tendency.
| Parameter | Bursting liability grade | None | Weak | Strong |
| Duration of dynamic fracture (ms) | DT > 500 | 50 < DT ≤ 500 | DT ≤ 50 | Elastic strain energy index | WET < 2 | 2 ≤ WET < 5 | WET ≥ 5 | Bursting energy index | KE < 1.5 | 1.5 ≤ KE < 5 | KE ≥ 5 | Uniaxial compressive strength (MPa) | Rc < 7 | 7 ≤ Rc < 14 | Rc ≥ 14 |
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