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Preliminary Experimental Study of Electromagnetic Emission(EME)Phenomena during the Deforming and Fracturing of Coal Body
Author(s): 
Pages: 38-41
Year: Issue:  4
Journal: SAFETY IN COAL MINES

Keyword:  含瓦斯煤体电磁辐射声发射煤与瓦斯突出;
Abstract: 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.
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