Hierarchic Analysis Method to Evaluate Rock Burst Risk

Table 18

The other factors and quantitative scores.

Degree of production centralization	None	Low	Medium	Relatively high	High
Rings of coal burst	None	Few	Several times	Frequently	Uninterrupted
Investment	High	Relatively high	In general	Less	None
Prevention measures	Good effect	Fully	In general	Less	None
Training	More	Relatively more	In general	Less	None
Scores	2	4	6	8	10