| 冲击煤样单轴压缩的声发射特征研究 |
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| 引用本文： | 宋晓艳,李忠辉.冲击煤样单轴压缩的声发射特征研究[J].煤炭工程,2011,0(11):110-113. |
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| 作者姓名： | 宋晓艳 李忠辉 |
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| 作者单位： | 1. 中国矿业大学应用技术学院,江苏徐州,221008
2. 中国矿业大学安全工程学院,江苏徐州,221116 |
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| 基金项目： | 中国矿业大学青年科研基金资助项目(2009A060); 国家自然科学青年基金项目(40904028); 教育部新世纪优秀人才支持计划(NCET-10-0768); 全国博士学位论文作者专项资金资助项目(201055); 江苏省“青蓝工程”资助(201010290-02) |
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| 摘 要： | 为了研究冲击煤样破坏的前兆特征,利用煤岩声发射实验系统对冲击煤样进行了单轴压缩声发射实验,研究了煤样的破坏过程及声发射特征规律.结果表明:声发射活动与载荷及煤样变形破坏具有较好的相关性；冲击煤样的声发射通常在载荷达到最大,试样完全失稳破坏时才会密集出现,表现出产生明显的“群震”特征,峰后基本上无信号产生.分析发现,在临...
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| 关 键 词： | 冲击煤样 单轴压缩 声发射 特征 |
Study on Sonic Transmitting Features of Uniaxial Compression for Bumping Coal Sample |
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| SONG Xiao-yan,LI Zhong-hui.Study on Sonic Transmitting Features of Uniaxial Compression for Bumping Coal Sample[J].Coal Engineering,2011,0(11):110-113. |
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| Authors: | SONG Xiao-yan LI Zhong-hui |
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| Affiliation: | SONG Xiao-yan1,LI Zhong-hui2(1.School of Applied Technology,China University of Mining and Technology,Xuzhou 221008,China,2.School of Safety Engineering,Xuzhou 221116,China) |
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| Abstract: | In order to study the omen features of the bumping coal example failure,a coal and rock sonic transmitting experiment system was applied to conduct the uniaxial compression sonic transmitting experiment on the bumping coal sample and to study the failure process of the coal sample and the sonic transmitting feature law.the results showed that the sonic transmitting activity would have a good relativity with the loading and the sample deformation and failure.The sonic transmitting of the bumping coal sample ... |
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| Keywords: | bumping coal example uniaxial compression sonic transmitting features |
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