摘要
研究了瓦斯对电磁辐射（EME）的影响规律及影响机制，对电磁辐射法预测煤与瓦斯突出原理进行了探讨.研究结果表明：煤体变形破裂时，电磁辐射与煤岩体的载荷及变形破裂过程密切相关，煤体中的瓦斯能使电磁辐射增强，瓦斯在煤体中的流动及冲击能产生电磁辐射；电磁辐射强度和脉冲数两项指标综合反映了工作面前方煤体的突出危险程度，用电磁辐射法预测预报煤与瓦斯突出是可行的，煤岩电磁辐射技术在预测煤与瓦斯突出和冲击地压等方面有着非常广泛的应用前景.
The effect rule and mechanism of gas on electromagnetic emission(EME) and the principle of predicting coal and gas outburst with EME were investigated. The results show that EME is closely related to the load acting on coal and rock mass and the process of their deformation and fracture, that the gas in coal seams can enhance EME and its flow and impact can produce EME, that the amplitude and pulse number of EME reflect comprehensively the danger of coal outburst before working faces, and that it is feasible to forecast coal and gas outburst with EME method. Therefore, EME technology has a wide prospect in the prediction of catastrophic dynamical phenomena of coal or rock, such as coal and gas outburst and rock burst.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2000年第3期225-229,共5页
Journal of China University of Mining & Technology
基金
国家教委"跨世纪优秀人才培养计划"基金
国家"九五"科技攻关!(96-223-01-04-03)
国家自然科学基金!(59874028)
国家杰出青年
关键词
含瓦斯煤体
电磁辐射
瓦斯突出
煤突出
突出原理
deformation and fracture of coal and rock
coal seam with gas
electromagnetic emission
coal and gas outburst
