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金属矿山 ›› 2008, Vol. 38 ›› Issue (10): 13-15.

• 专题综述 • 上一篇    下一篇

声发射及CT在煤岩体裂纹扩展实验中的应用进展

刘京红1,2,姜耀东1,3,赵毅鑫1,3   

  1. 1.中国矿业大学;2.河北农业大学;3.中国矿业大学煤炭资源与安全开采国家重点实验室
  • 收稿日期:2008-08-23 出版日期:2008-10-15 发布日期:2011-07-13
  • 基金资助:

    国家自然科学基金重大项目(编号:50490272),国家重点基础研究发展规划(973)基金项目(编号:2002CB412705,2006CB202203),国家自然科学项目(编号:10572147),国家科技支撑计划项目(编号:2006BAK03B06),北京市教育委员会共建项目建设计划项目。

Progress in the Application of AE and CT in Research of Coal and Rock Fracture Propagation

Liu Jinghong1,2,Jiang Yaodong1,3,Zhao Yixin1,3   

  1. 1.China University of Mining &  Technology;2.Agricultural University of Hebei;3. State Key Laboratory of Coal Resources and Safe Mining, CUMT
  • Received:2008-08-23 Online:2008-10-15 Published:2011-07-13

摘要: 声发射技术和CT扫描技术是监测煤岩体裂纹扩展的重要手段。概述了声发射及CT扫描实验在煤岩体领域的发展历程和应用现状。结合声发射技术与CT扫描实验的优点,提出声发射与CT相结合进行煤岩体实验的研究方向,以便于有效结合煤岩体内部裂纹变化情况进行煤岩体裂纹扩展机理的研究,为进一步研究煤矿冲击地压的发生机理提供理论依据。

关键词: 声发射实验, CT实验, 煤岩体, 裂纹扩展, 冲击地压

Abstract: Acoustic Emission (AE) and Computerized Tomography (CT) scanning are important means to monitor the coal and rock fracture propagation. The paper reviews the development of AE and CT tests and their application in coal and rock field. In light of the advantages of AE and CT scanning tests, it is proposed to jointly use AE and CT in the research of coal and rock structure, facilitating an effective combination of the research of coal and rock fracture propagation with the internal fracture change of coal-rock mass, and providing a theoretical basis for the further research of the occurrence mechanism of impact ground pressure in coal mines.

Key words: AE test, CT test, Coal-rock mass, Fracture propagation, Impact ground pressure