| 煤岩体电荷检测在动力灾害预测中的应用 |
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| 引用本文： | 唐治,潘一山,李忠华,阎海鹏,李国臻,赵扬锋.煤岩体电荷检测在动力灾害预测中的应用[J].中国地质灾害与防治学报,2010,21(3):109-112. |
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| 作者姓名： | 唐治 潘一山 李忠华 阎海鹏 李国臻 赵扬锋 |
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| 作者单位： | 辽宁工程技术大学力学与工程学院,辽宁,阜新,123000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 文章为煤岩动力灾害的预测提供新的方法,针对大安上煤矿用岩体电荷辐射测试仪进行现场实验测试,得出:(1)大安山矿电荷感应幅值在300Pc以下,煤岩体比较稳定;(2)电荷感应幅值呈现出与周期来压一致的周期性变化;(3)电荷感应幅值最大处一般均在工作面前方10～16m,这与采掘工作面前方煤岩层的集中应力向煤体深部传播一致;(4)在测期间一直处于稳定状态,而测得的电荷感应幅值也较小,说明和实际比较符合。还简要介绍安装工艺。得出岩体电荷检测能对动力现象作出预测。
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| 关 键 词： | 煤岩体电荷检测 动力灾害 岩爆 预测 |
Application of charge detection of coal-tock in the dynamic disaster prediction |
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| TANG Zhi,PAN Yi-shan,LI Zhong-hua,YAN Hai-peng,LI Guo-zhen,ZIIAO Yang-feng.Application of charge detection of coal-tock in the dynamic disaster prediction[J].The Chinese Journal of Geological Hazard and Control,2010,21(3):109-112. |
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| Authors: | TANG Zhi PAN Yi-shan LI Zhong-hua YAN Hai-peng LI Guo-zhen ZIIAO Yang-feng |
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| Institution: | (School of Mechanics and Engineering,Liaoning Technical Univerity,Fuxin 123000,China) |
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| Abstract: | Charge detecions were conducted on the rock mass in Daanshang Coal Mine to prvide a new idea to predict the dynamic disasters in coal-rock.The results showed that：（1） the coal-rock would be stable if the amplitude of charge induction in the mine was below 300pc;（2） the amplitude of charge induction consistently changed with the periodic roof pressure;（3）the maximum of charge induction amplitude generally appeared at 10m ～ 16m behind the working face,consistent with the concentrated stress in coal-rock behind the working face spreading bey ond;（4） the rock mass was in stability all along the measuring thim and the measured amplitudes of charge induction were also small,which was in accordance with the practical situation.Besides,the installation process of the devices was briefly introdued in the paper,It was concluded that charge detection of rock mass was useful to predict the dynamic phenomena. |
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| Keywords: | charge detection of coal and dynamic disaster rock rock burst prediction |
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