摘要
用电磁辐射法预测煤与瓦斯突出是突出研究的新技术手段。本文阐述了电磁辐射法预测突出的理论和实验基础 ,电磁辐射法预测突出能实现连续、非接触、准确可靠和自动化监测 ,是煤与瓦斯突出预测技术的发展方向。同时也指出了目前的未知领域和研究成果的缺陷 ,指明了以后的研究方向和课题。
This paper aims to introduce the basic theoretical and experimental principles on predicting the coal and gas outbursts by using electromagnetic emission (EME), which is generally thought of as a guiding new and high-tech means in this field. In accordance with the experiment and application results, the paper has also made a discussion on the EME principle of deformation and fracture of coal and rock. Both the EME amplitude and the pulse, as a matter of fact, expands with the load increase, but they are not the strict with the synchronous variation. The author also intends to extend his point of view that the mechanism of coming into being EME is the resultant of the electric dipole transient, the variable motion of separate charge and the vanishing of the separate charge. That is to say, both EME amplitude and pulse can be used as the sensitive index mark for predicting the coal and gas outburst. The predicting coal and gas outbursts with EME is by nature a geophysical method with a highly promising prospect for its great practicable adaptability in coal mining industry. It helps to realize continuous, non-contact, accurate, reliable and automated monitoring and predicting of the coal and gas outbursts. At the same time, the paper also points out some present unknown fields and the shortage of the research findings lately. Last of all, the author is glad to show some research orientations and goals to be achieved.
出处
《安全与环境学报》
CAS
CSCD
2003年第4期7-10,共4页
Journal of Safety and Environment
基金
河南省杰出青年基金资助项目"煤岩动力灾害电磁辐射规律效应研究"
关键词
矿山安全
煤与瓦斯突出
电磁辐射
非接触预测
煤岩破裂
mine safety
coal and gas outbursts
electromagnetic emission
non-contact forecasting
deformation and fracture of coal and rock
