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态矢量方法的实验研究

Experimental study of state vector

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【作者】余怀忠；尹祥础；张永仙；夏蒙棼；梁乃刚；李敏；许昭永；彭克银；颜玉定； Victor Kukshenko； Wu Zhishen； Qi Li； Surguei Elizarov；

【Author】 YU Huai-zhong~1,YIN Xiang-Chu~(1, 2),ZHANG Yong-xian~(1,2),XIA Meng-fen~(1,3), LING Nai-gang~1,LI Min~1,XU Zhao-yong~(1,4),PENG Ke-yin~(1,2),YAN Yu-ding~(1,5), Victor Kukshenko~6,Wu Zhishen~7,Qi Li~7,Surguei Elizarov~8 (1.LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080; 2. Center for Analysis and Prediction, CEA, Beijing 100036; 3.Peking University, Beijing 100871; 4.Earthquake Admini- stration of Yunnan Province, Kunming 650041; 5.Earthquake administration of Guangdong Province, Guangzhou 510070; 6.Loffe Physical technique Institute, Russian Academy of Sciences, Russia; 7.Ibaraki University, Japan; 8.Interunis Ltd, Moscow, Russia)

【机构】中国科学院力学研究所非线性力学国家重点实验室； Loffe Physical technique Institute； Russian Academy of Sciences； Ibaraki University； Interunis Ltd 北京100080；北京100080中国地震局分析预报中心；北京100036；北京100080北京大学；北京100871；北京100080；北京100080云南省地震局；云南昆明650041；北京100080广东省地震局；广东广州510070； Russia； Japan； Moscow； Russia；

【摘要】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(AcousticEmission),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。更多还原

【Abstract】 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.更多还原

【关键词】态矢量；声发射；临界点；地震预测；
【Key words】 State vector； Acoustic emission； Critical point； Earthquake prediction；

【基金】中国财政部APEC专项基金;国家自然科学基金项目(10232050);国家973项目(2002CB412706);中国科学院计算网络中心项目(INF105 SCE 2 02)

【文献出处】地震 ,Earthquake , 编辑部邮箱 ,2004年03期
【分类号】P315.8
【被引频次】12
【下载频次】100

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