Research Article
Study on Mechanism and Main Influencing Factors of Rockburst under Complex Conditions of Hard and Deep Overburden
Table 7
Judgment matrix of influencing factors (zone III).
| | C | Coal seam burial depth | Sandstone layer thickness | Fold structure | Distance to thick sandstone layer | Roadway layout | Excavation strength |
| | Coal seam burial depth | 1 | 1/2 | 1/3 | 1/3 | 1/3 | 1/4 | | Sandstone layer thickness | 2 | 1 | 1/2 | 1/2 | 1/2 | 1/2 | | Fold structure | 3 | 2 | 1 | 1 | 1 | 1/2 | | Distance to thick sandstone layer | 3 | 2 | 1 | 1 | 1 | 1/2 | | Roadway layout | 3 | 2 | 1 | 1 | 1 | 1/2 | | Excavation strength | 4 | 2 | 2 | 2 | 2 | 1 |
|
|
