摘要
对煤岩破裂过程产生电磁辐射的原理进行了分析 ,针对煤岩破裂电磁辐射信号的特征 ,设计出了电磁辐射监测仪 ,并将该监测仪应用于煤与瓦斯突出、矿井冲击地压的预测预报 ,得到了大量数据 ,总结出煤岩破裂危险程度与电磁辐射强度和脉冲数的关系。给出了有突出危险时电磁辐射强度和脉冲数的临界值和在有冲击地压发生时电磁辐射的变化规律。
In this paper,a new monitor for detecting the electromagnetic emission(EME) during coal or rock fracture is introduced. Using the measured data obtained in the past few years,the relation between the level of dangerous in coal or rock fracture and the intensity and pulse number in EME is analyzed The critical value of the intensity and pulse number in EME when the danger of outburst exists is determined,and a variety law is obtained.
出处
《电波科学学报》
EI
CSCD
2004年第2期161-165,共5页
Chinese Journal of Radio Science
基金
江苏省自然基金资助项目 (BK2 0 0 2 115 )
关键词
煤岩破裂
电磁辐射
瓦斯突出
冲击地压
监测仪
coal or rock fracture, electromagnetic emission, gas outburst, rockburst
