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对岩石破裂所产生的电磁辐射现象的观测和研究 ,对于研究地震规律和矿山冲击矿压及其预报具有重要的意义。在实验室和现场条件下 ,采用 EAE- 0 4声电测试系统和KBD5电磁辐射监测仪对煤岩变形破裂过程中的电磁辐射进行了测定。试验和测试结果表明 ,煤岩体在变形、破坏过程中均产生电磁辐射现象 ;煤岩在冲击破坏前 ,电磁辐射强度一般在某个值以下 ,而在冲击破坏时 ,电磁辐射强度突然增加 ;而电磁辐射的脉冲数则随载荷的增加及变形破裂过程的发展而增大。依此规律 ,可以对冲击矿压危险性进行评价和预测预报。
The observation and research of electromagnetic radiation phenomenon caused by rock rupture is of great significance for studying the seismic laws and mine rock burst and its prediction. Under the laboratory and field conditions, the electromagnetic radiation in the process of deformation and rupture of coal and rock was measured by EAE-04 acoustic and electrical test system and KBD5 electromagnetic radiation monitor. The test and test results show that the coal and rock mass produce electromagnetic radiation in the process of deformation and failure. The intensity of the electromagnetic radiation is generally below a certain value before the rock burst and the intensity of the electromagnetic radiation suddenly increases when the rock mass is damaged by the impact. The pulse number of electromagnetic radiation increases with the increase of load and the development of deformation and rupture. According to this law, the risk of rock burst can be evaluated and predicted.