| 矿井煤岩动力灾害声发射监测适用条件初探 |
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| 引用本文： | 文光才,李建功,邹银辉,吕贵春.矿井煤岩动力灾害声发射监测适用条件初探[J].煤炭学报,2011,36(2):278-282. |
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| 作者姓名： | 文光才 李建功 邹银辉 吕贵春 |
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| 作者单位： | 煤炭科学研究总院 重庆研究院，重庆400037 |
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| 基金项目： | 国家重点基础研究发展计划（973）项目（2005CB221505） |
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| 摘 要： | 基于应力波传播理论、品质因子 Q 理论，建立了煤岩体声发射传播理论模型，并结合大量现场试验，得出了声发射在不同普氏坚固性系数的煤岩介质中的传播规律；基于此规律及现场实际监测工艺，初步确定了声发射监测煤岩动力灾害的适用条件:当煤的普氏坚固性系数f p ＜0.2时，声发射传感器宜安装在顶板岩层内；当煤的普氏坚固性系数 f p ≥0.2时，声发射传感器可安装在岩体内，也可安装在煤体内。
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| 关 键 词： | 煤岩体 动力灾害 声发射 监测适用条件 普氏坚固性系数 传播规律 |
| 收稿时间： | 2010-05-31 |
Preliminary study on the application conditions of acoustic emission monitoring dynamic disasters in coal and rock |
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| Abstract: | Based on the stress wave propagation theory and quality factor Q theory,the AE propagation theoretic model was established.And combined with the many field tests,the AE propagation laws in coal and rock with the different Protodrakonov scale of hardness were found.Based on these propagation laws and monitoring techniques in the field,the application conditions of AE monitoring dynamic disasters in the coal and rock were preliminarily given,which can be described that,when the Protodrakonov scale of hardness of coal is smaller than 0.2,AE sensors must be installed in the roof rock;when the Protodrakonov scale of hardness of coal is not less than 0.2,AE sensors can be installed in the roof rock or in the coal. |
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| Keywords: | coal and rock dynamic disasters acoustic emission（AE） monitoring application conditions Protodrakonov scale of hardness propagation laws |
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