电磁辐射在冲击地压预测预报中的应用

Application of Electromagnetic Radiation in Rock-brust Prediction

结合河南义马某矿的冲击地压特点,选择适当的监测方法并进行定点及区域电磁辐射监测,综合现场采集数据及之前实验确定电磁辐射强度临界值65 m V,电磁辐射脉冲临界值70次/s,基于电磁辐射机理对该矿冲击地压前后的电磁辐射最大值及均值的变化规律进行分析,得出冲击地压前的能量变化规律及煤岩体的电磁辐射与其所受应力及变形破坏之间存在一定规律,证明电磁辐射对于冲击地压具有定性反馈作用及定位功能,对冲击地压防治具有指导意义,利用电磁辐射技术对爆破卸压前后进行效果验证,取得良好的工程效果。

Combining the characteristic of rock-brust in a certain coal mine in Yima city, select appropriate monitoring method and carried on the fixed point and original electromagnetic radiation monitoring.Integerated field date collection and experiment ahead to determine the critical value of intensity of electromagnetic radiation 65 m V and eletromagnetic radition puls critical value are70 times/s. Which based on electromagnetic radiation mechnism to analysis the maximum value and the average value of electromagnetic radiation of mine before and after rock-brust present the relationship between electromagnetic radiation and the extent of stress, proof electromagnetic radiation has qualitative feedback effect positioning function for rock-brust and guiding significancein rock-brust prevention exploting failure strainusing the electromagnetic radiation to verified the effection of destresing which achieve good effects.