Hierarchic Analysis Method to Evaluate Rock Burst Risk

Table 10

Every factor weight summary table.

	First grade index	Weight	Second index	Weight
Analysis on factors affecting impulsion pressure	Natural factors	0.10473	Mining depth	0.16705
			Mechanical properties of coal and rock	0.30154
			Geological structure	0.034103
			Coal thickness	0.062147
	Technical factors	0.63699	Burst tendency of coal rock	0.06887
			Roof control	0.021066
			Degree of production concentration	0.057676
			Pressure relief	0.10109
	Organization management factors	0.25828	Rings of coal burst	0.012089
			Investment	0.043473
			Prevention measures	0.10351
			Training	0.027386