Research Article

Hierarchic Analysis Method to Evaluate Rock Burst Risk

Table 21

Evaluation of the risk of rock burst grade features by hierarchic analysis method.

The quantitative value of risk ratingRisk rating

2.0–4.0Micro-impact (level I)
4.0–6.0Low impact (level II)
6.0–8.0Medium impact (level III)
8.0–10.0Strong impact (level IV)