煤岩电磁辐射效应及其在煤与瓦斯突出预测中的应用

ELECTROMAGNETIC EMISSION EFFECT DURING THE FRACTURE OF COAL OR ROCK AND ITS APPLICATION IN PREDICTING COAL AND GAS OUTBURST

实验研究了单轴应力不同受载方式下的煤岩变形破坏电磁辐射效应规律,探讨了电磁辐射法预测煤与瓦斯突出原理,并将电磁辐射技术应用于煤与瓦斯突出预测。结果表明,电磁辐射法可应用于煤与瓦斯突出预测,预测精度较高,方法简便,大大降低劳动强度和生产成本,真正实现了非接触式空间预测;非接触连续动态空间预测是未来煤与瓦斯突出预测理论的发展趋势。

Electromagnetic emission （EME） effects during the deformation and fracture of coal or rock are studied by the experimental methods of uniaxal compression and different loading ways in this paper. The principle of forecasting coal and gas outburst by EME method is discussed and applied to forecasting the criticality of coal and gas outburst. The results show that the EME method is entirely feasible to forecasting the criticality of coal and gas outburst. It has many advantages, such as high accuracy, simple method, low work intension and＇cost, and indeed realizing non-contact space forecasting. The developing trend of coal and gas outburst forecasting theory is non-contact continuously dynamic space forecast.