Research Article
Hierarchic Analysis Method to Evaluate Rock Burst Risk
Table 7
Judgment matrix
and parameters.
| | Judgment matrix | Mining depth | Mechanical properties of coal and rock | Geological structure | Coal thickness | Burst tendency of coal rock | Weight | Maximum eigenvalue | Consistency ratio |
| | Mining depth | 1 | 1/2 | 4 | 3 | 3 | 0.2636 |
5.0721 |
0.0161 < 0.1 | | Mechanical properties of coal and rock | 2 | 1 | 7 | 5 | 5 | 0.4758 | | Geological structure | 1/4 | 1/7 | 1 | 1/2 | 1/3 | 0.0538 | | Coal thickness | 1/3 | 1/5 | 2 | 1 | 1 | 0.0981 | | Burst tendency of coal rock | 1/3 | 1/5 | 3 | 1 | 1 | 0.1087 |
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