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实验研究了含瓦斯煤体变形破裂时产生的电磁辐射现象 ,并考察了电磁辐射与声发射的关系。结果表明 ,含瓦斯煤体在受载破坏时能够产生电磁辐射 ,电磁辐射与声发射并非严格同步 ;电磁辐射信号随着载荷的增大而增强 ,随着载荷的降低而减弱 ,在煤体受载的全过程基本上都出现 ,这一实验结果可为煤与瓦斯突出预报提供理论依据
The phenomena of electromagnetic radiation generated during deformation and rupture of coal-bearing gas are experimentally studied, and the relationship between electromagnetic radiation and acoustic emission is investigated. The results show that the gas containing coal can generate electromagnetic radiation when it is damaged by the load, and the electromagnetic radiation is not strictly synchronized with the acoustic emission. The electromagnetic radiation signal increases with the increase of the load and decreases with the decrease of the load. The entire process of loading basically occurs. The result of this experiment can provide theoretical basis for the prediction of coal and gas outburst