| 煤岩单轴压缩破坏过程声发射试验研究 |
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| 引用本文： | 刘京红,姜耀东,赵毅鑫,祝捷.煤岩单轴压缩破坏过程声发射试验研究[J].河北农业大学学报,2012(5):105-108. |
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| 作者姓名： | 刘京红 姜耀东 赵毅鑫 祝捷 |
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| 作者单位： | 河北农业大学城乡建设学院;中国矿业大学煤炭资源与安全开采国家重点实验室;中国矿业大学力学与建筑工程学院 |
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| 基金项目： | 国家重点基础研究发展规划(973)项目(2010CB226801);河北省教育厅青年基金项目(编号2011-254);河北省建设科技研究指导性计划(2012-2058) |
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| 摘 要： | 声发射技术是监测岩石、煤、混凝土等材料破坏过程裂纹扩展的重要技术手段。通过煤岩试样的单轴压缩声发射试验,监测分析了煤岩试样变形破坏过程中的破坏前兆信息;试验对比分析了声发射、应变、荷载的相关性,分析了试样内部裂纹的扩展至破坏全过程的声发射信息。为深入认识煤岩冲击破坏灾害提供必要的数据。为进一步将声发射技术应用于预测预报煤岩动力灾害、评估岩石混凝土结构稳定性及研究岩石混凝土等材料的破裂过程发生机理提供理论依据。
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| 关 键 词： | 声发射试验 煤岩 裂纹扩展 破坏过程 |
Acoustic emission uniaxial compression test research on rock crack propagation destruction process |
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| LIU Jing-hong,JIANG Yao-dong,ZHAO Yi-xin,ZHU Jie.Acoustic emission uniaxial compression test research on rock crack propagation destruction process[J].Journal of Agricultural University of Hebei,2012(5):105-108. |
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| Authors: | LIU Jing-hong JIANG Yao-dong ZHAO Yi-xin ZHU Jie |
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| Institution: | 2,3(1.College of Urban and Rural Construction,Agricultural University of Hebei,Baoding 071001,China; 2.State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology,Beijing 100083, China;3.School of Mechanics & Civil Engineering,China University of Mining & Technology,Beijing 100083,China) |
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| Abstract: | Acoustic emission monitoring test is a important technique to study coal,rock and concrete crack propagation and failure process.Monitoring and analysis on coal samples uniaxial compression tests were studied integrate utilized acoustic emission.The paper comparison and analysis of acoustic emission,strain,load and internal crack propagation on the destruction process of the rock samples acoustic emission information.The test provide the necessary data for in-depth understanding the impact of the coal and rock damage process.The test provide the necessary data to knowing that coal rock impingement destroys disaster in depth.The result process mechanism provides the theory basis to applying Acoustic emission monitoring test technology to material such as coal,rock and concrete for forecasting the dynamic,appraising rock concrete structure stability and studying the rock concrete material further. |
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| Keywords: | acoustic emission test rock crack propagation destruction process |
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