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Monitoring and applications of electromagnetic emission as coal rock bursting

QIAN Jian-sheng 1 WANG En-yuan 2 (1.College of Information and Electrical Engineering,Xuzhou Jiangsu 221008,China; 2.College of Mineral and Energy Resources, China University of Mining and Technology,Xuzhou Jiangsu 221008,China)  
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.
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