跃进矿25110工作面巷道冲击的电磁辐射前兆规律

IThe electromagnetic radiation (EMR) technology can forecast rock burst. According to a frequent occurrence of the rock burst on the working faces of Yuejin coalmine, using electromagnetic radiation technology to forecast the danger of burst. Taking the No.25110 working face as a Specific object of study, EMR precursor of rock burst on working face was analyzed, the destressing blasting measure was applied to eliminate the danger of rock burst in the side wall of roadway, and the electromagnetic radiation technology was used to test the effect of the destressing blasting measure. The results show that when the monitoring area of the working face has the danger of rock burst, the EMR signals in this area have obvious abnormal precursor. It also can be proved that the electromagnetic radiation technology can effectively test the effect of the destressing blasting measure. If the value of the electromagnetic radiation intensity reduces after the destressing blasting, the effect of the destressing blasting is better, and the danger of rock burst can be reduced or eliminated in a certain degree.