%0 Journal Article
%T Electromagnetic radiation characteristics of coal and rocks during excavation in coal mine and their application<br>煤矿采掘过程中煤岩体电磁辐射特征及应用
%A WANG En-Yuan
%A HE Xue-Qiu
%A DOU Ling-Ming
%A ZHOU Shi-Ning
%A NIE Bai-Sheng
%A LIU Zhen-Tang College of Energy & Safety Engineering
%A China University of Mining
%A Technology
%A Xuzhou
%A China
%A <br>王恩元
%A 何学秋
%A 窦林名
%A 周世宁
%A 聂百胜
%A 刘贞堂
%J 地球物理学报
%D 2005
%I 
%X Electromagnetic radiation (EMR) signals produced by coal and rocks in working faces during excavation in coal mine were measured with the KBD5 electromagnetic radiation monitoring equipment. We analyze the relationships between electromagnetic radiation signals and excavation, dynamic disaster fatalness of coal and rocks. Our research shows that the electromagnetic radiation is produced in the course of excavation, which is the result of the stress redistribution or deformation and fracture of coal and rocks tending to a new balance when affected by excavation. There is obvious electromagnetic anomaly precursor when there is danger of coal and gas outburst or rock burst, and electromagnetic radiation intensity drops notably after taking measures. The electromagnetic radiation technology can be used for forecasting dynamic disasters such as coal and gas outburst and rock burst in coal mine.
%K Coal mine excavation
%K Electromagnetic radiation anomaly
%K Coal and gas outburst
%K Rock burst<br>煤矿采掘过程
%K 电磁辐射异常
%K 煤与瓦斯突出
%K 冲击地压
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=DE3F69DEBBF41AD6&yid=2DD7160C83D0ACED&vid=B6DA1AC076E37400&iid=CA4FD0336C81A37A&sid=CEC789B3C68C3BB3&eid=CEC789B3C68C3BB3&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=20&reference_num=11