态矢量方法的实验研究
Experimental study of state vector
查看参考文献19篇
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文摘
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在地震等灾变的发生之前,会出现一定的前兆现象.文中通过实验方法对这些前兆现象之一的态矢量的异常变化进行了研究.实验使用声发射技术(Acoustic Emission),对三轴应力条件下岩石试件内部微裂纹的产生和扩展进行了记录.实验结果表明在岩石试件最终破坏之前,表征态矢量的相关参量都发生了异常明显的变化,这表明态矢量的异常变化可以被用作为岩石等脆性材料灾变的前兆,使用态矢量方法可以对脆性材料的破坏乃至地震作出预测. |
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其他语种文摘
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Before catastrophe, such as earthquakes, some precursors will appear. The tremendous change of state vector is one of them, which has been investigated in the present paper. By using acoustic emission technique the creation and growth of microcracks in rock specimens that stressed by triaxial stresses have been registered during the course of the experiment. The experimental results indicate that prior to the failure of rock specimens, all the related parameters of state vector have been undergone remarkable change. That means state vector could be adopted as precursor for catastrophe in brittle media and also served as a measurement to predict failure of brittle media and earthquakes. |
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来源
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地震
,2004,24(3):1-7 【核心库】
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关键词
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态矢量
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声发射
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临界点
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地震预测
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地址
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1.
中国科学院力学研究所, 非线性力学国家重点实验室, 北京, 100080
2.
Ioffe Physical Technique Institute,Russian Academy of Sciences,Russia
3.
Ibaraki University,Japan
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Interunis Ltd,Moscow,Russia
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-3274 |
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学科
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地球物理学 |
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基金
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国家财政部APEC专项
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国家973计划
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国家自然科学基金项目
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中国科学院计算网络信息中心项目
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文献收藏号
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CSCD:1600231
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