| 岩石(体)声发射特征综述 |
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| 引用本文： | 李俊平. 岩石(体)声发射特征综述[J]. 科技导报(北京), 2009, 27(7) |
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| 作者姓名： | 李俊平 |
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| 作者单位： | 鸡西大学安全与环境工程系,黑龙江鸡西158100;武汉大学,水资源与水电工程科学国家重点实验室,武汉430072 |
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| 摘 要： | 因模型试验和数值仿真对岩体的局限性,应用岩体声发射技术监测评价岩体工程的稳定性不可缺少,有时是唯一不可替代的技术之一.岩体监测预报,曾普遍应用0～1 kHz的低频声发射仪,仅用事件和能率作为预报参数,加上复杂岩体的声发射特征还认识不清,且没有很好的噪音剔除方法,使得采集频带可能过宽,信号接收的敏感性可能偏低,预报判据有时很不充分,监测很容易受环境干扰.本文简要叙述了近年发现的岩石(体)声发射的一些特征,据此提出了岩体声发射技术研发的若干建议,包括仪器改进与完善,噪音剔除新方法研究和复杂岩体AE特性研究等.
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| 关 键 词： | 岩体(岩石) 声发射 监测 |
Acoustic Emission Characteristics of Rock/Rock-mass |
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| LI Junping, .School of Safety , Environmental Engineering,Jixi University,Jixi ,Heilongjiang Province,China .State Key Laboratory of Water Resources , Hydropower Engineering Science,Wuhan University,Wuhan ,China. Acoustic Emission Characteristics of Rock/Rock-mass[J]. Science & Technology Review, 2009, 27(7) |
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| Authors: | LI Junping .School of Safety Environmental Engineering Jixi University Jixi Heilongjiang Province China .State Key Laboratory of Water Resources Hydropower Engineering Science Wuhan University Wuhan China |
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| Affiliation: | LI Junping1,2 1.School of Safety , Environmental Engineering,Jixi University,Jixi 158100,Heilongjiang Province,China 2.State Key Laboratory of Water Resources , Hydropower Engineering Science,Wuhan University,Wuhan 430072,China |
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| Abstract: | Owing to the limitation of model simulation and numerical simulation for rock-mass,Acoustic Emission(AE)techniques play an important role in monitoring and evaluating rock-mass stability.0~1 kHz AE apparatus is generally adopted and only the AE event and AE energy are used in monitoring and forecasting.Without a clear understanding of the AE characteristics of rock-mass and without an efficient way to remove noise,too broad frequency band has to be adopted to collect AE signals,with low sensitivity of signa... |
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| Keywords: | rock-mass/rock acoustic emission monitoring |
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