Research Article
Coal Mine Gas Explosion Vulnerability Assessment Based on the “Glass Heart” Model
Table 1
Vulnerability classification standard.
| Grades | State | Range | Description |
| I | Completed | | No casualties or property loss | II | Ruptured | | Likely casualties and/or property loss | III | Broken | | Definite casualties and/or property loss | IV | Comminuted | | Larger casualties and/or property loss |
|
|