| 影响岩石声发射的几个因素 |
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| 引用本文： | 孙吉主,周健,唐春安.影响岩石声发射的几个因素[J].大地测量与地球动力学,1997(2). |
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| 作者姓名： | 孙吉主 周健 唐春安 |
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| 作者单位： | 同济大学，东北大学 |
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| 摘 要： | 以岩石的损伤本构关系为基础，分析了声发射与岩石－试验机共同作用系统稳定性的关系，重点从微观上讨论了试验机刚度和岩石均质度的影响，并从岩石破裂失稳角度分析了围压降低所引起的声发射活动性增强现象。最后考虑载荷历史的影响，得到了和主震—余震相对应的声发射模式
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| 关 键 词： | 声发射 岩石破裂 力学模型 |
FACTORS AFFECTING ACOUSTIC EMISSION OF ROCK |
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| Sun Jizhu and Zhou Jian.FACTORS AFFECTING ACOUSTIC EMISSION OF ROCK[J].Journal of Geodesy and Geodynamics,1997(2). |
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| Authors: | Sun Jizhu and Zhou Jian |
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| Abstract: | Based on the damaged constitute relation of rock and simple mechanism model for testing machine-rock specimen system,two groups of acoustic emission curves are gained through differential calculation.Then the influences of testing machine stiffness and rock homogeneity on acoustic emission micro-mechanism are analyzed in detail.The study shows that the activity of acoustic emission can be increased with the decrease of surrounding pressure in the system while it is changed.Finally,considering the loading history,the expression for acoustic emission related to main shock-aftershock type is obtained. |
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| Keywords: | acoustic emission rock rupture mechanical model |
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