The Study on Large-Diameter Drilling Prevention Method of Rock Burst in the Xinxing Coal

Table 7

Statistics of the frequency of electromagnetic radiation intensity monitoring.

No.	1	2	3	4	5	6	7	8
Strength	7.5	22.5	37.5	52.5	67.5	82.5	97.5	112.5
Frequency	300	200	150	90	85	60	45	30