| 掘进工作面前方电磁辐射分布规律研究 |
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| 引用本文： | 李忠辉,王恩元,何学秋,刘贞堂,晋树青,贾慧霖.掘进工作面前方电磁辐射分布规律研究[J].中国矿业大学学报,2007,36(2):142-147. |
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| 作者姓名： | 李忠辉 王恩元 何学秋 刘贞堂 晋树青 贾慧霖 |
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| 作者单位： | 1. 中国矿业大学,能源与安全工程学院,江苏,徐州,221008
2. 晋城煤业集团,凤凰山矿,山西,晋城,048006 |
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| 基金项目： | 国家自然科学基金;国家科技攻关计划;国家重点基础研究发展计划(973计划);江苏省自然科学基金 |
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| 摘 要： | 为了研究煤矿掘进工作面前方煤体内不同深度的煤岩电磁辐射分布规律，利用KBD5电磁辐射监测仪对工作面前方煤体电磁辐射进行了现场测试，基于煤岩电磁辐射力电耦合规律，对煤岩变形破裂过程与电磁辐射强度的相关性进行了理论分析．结果表明：电磁辐射变化与煤体应力状态有较好的对应关系，工作面煤体内部具有多种应力状态和变形破裂状态．文中给出了比较典型的4种电磁辐射分布类型：煤体长期暴露的电磁辐射分布、防突措施后电磁辐射分布、新揭露煤体电磁辐射分布、有构造煤层的电磁辐射分布．
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| 关 键 词： | 掘进工作面 电磁辐射分布 应力分布 煤与瓦斯突出 |
| 文章编号： | 1000-1964(2007)02-0142-06 |
| 修稿时间： | 09 15 2006 12:00AM |
Study of Distribution of Electromagnetic Radiation of Coal or Rock Before Drivage Face |
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| LI Zhong-hui,WANG En-yuan,HE Xue-qiu,LIU Zhen-tang,JIN Shu-qing,JIA Hui-lin.Study of Distribution of Electromagnetic Radiation of Coal or Rock Before Drivage Face[J].Journal of China University of Mining & Technology,2007,36(2):142-147. |
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| Authors: | LI Zhong-hui WANG En-yuan HE Xue-qiu LIU Zhen-tang JIN Shu-qing JIA Hui-lin |
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| Abstract: | In order to study the electromagnetic radiation(EMR) signals of different depths in driving working face were experimentally tested with KBD5 EMR monitoring equipment.Based on the coupling rule of stress and electricity, the relativity of deformation and fracture process of coal or rock and intensity of EMR was analyzed theoretically.The results show that there is a good relation between EMR and the coal stress state,and there are various stress states and deformation and fracture states in coal seam of working faces.There are 4 typical EMR distribution types: that of coal seam long time exposed,that of coal seam after taking coal and gas outburst prevention measures,that of coal seam newly exposed,that of coal seam having structure. |
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| Keywords: | drivage face electromagnetic radiation distribution stress distribution coal and gas outburst |
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