| Couple analyzing the acoustic emission characters from hard composite rock fracture |
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| 作者姓名： | XingpingLai LinhaiWang MeifengCai |
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| 作者单位： | CivilandEnvironmentalEngineeringSchool,UniversityofScienceandTechnologyBeijing,Beijing100083,China |
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| 基金项目： | the Natural Science Foundation of Shannxi Province，教育部博士后科学基金，国家自然科学基金 |
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| 摘 要： | Rock mass is fractured media. Its fracture is a nonlinear process. The accumulation of acoustic emission (AE) is closely related to the degree of damage. The dynamics problem is simply described based on the non-equilibrium statistical theory of crack evolvement, trying to use the hybrid analysis of the statistical theory and scan electron microscopy (SEM), the characters of AE sig-nals from rock damage in a mined-out area is synthetically analyzed and evaluated. These provide an evidence to reverse deduce and accurately infer the position of rock fracture for dynamical hazard control.
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| 关 键 词： | 耦合分析 声学辐射 岩石 破碎机理 扫描电子显微镜 非平衡统计 大面积矿藏区域 |
Couple analyzing the acoustic emission characters from hard composite rock fracture |
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| XingpingLai LinhaiWang MeifengCai.Couple analyzing the acoustic emission characters from hard composite rock fracture[J].Journal of University of Science and Technology Beijing,2004,11(2):97-100. |
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| Authors: | Xingping Lai Linhai Wang Meifeng Cai |
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| Abstract: | Rock mass is fractured media. Its fracture is a nonlinear process. The accumulation of acoustic emission (AE) is closely related to the degree of damage. The dynamics problem is simply described based on the non-equilibrium statistical theory of crack evolvement, trying to use the hybrid analysis of the statistical theory and scan electron microscopy (SEM), the characters of AE sig nals from rock damage in a mined-out area is synthetically analyzed and evaluated. These provide an evidence to reverse deduce and accurately infer the position of rock fracture for dynamical hazard control. |
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| Keywords: | couple analysis acoustic emission scan electron microscopy (SEM) non-equilibrium statistics large scale mined-out area |
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