Estimation of Rock Burst Grades Using Rock Mass Strength

Table 15

Estimation results of various criteria.

No. of verification points		SRF	SRFQ		Barton’s criterion	Rehman’s criterion	Tao’s criterion	CHEGI’s criterion	Modified criterion
1	0.813	13.74	14.57	0.0423	Heavy	Heavy	Heavy	Violent	Strong
2	1.983	10.35	10.17	0.1105	Heavy	Heavy	Heavy	Strong	Medium
3	1.501	11.34	11.80	0.0836	Heavy	Heavy	Heavy	Strong	Medium
4	0.919	18.93	12.55	0.0478	Heavy	Heavy	Heavy	Violent	Strong