| 岩石破坏前的短临应变前兆研究 |
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| 引用本文： | 许昭永,杨润海,赵晋明,华培忠,王彬,梅世蓉.岩石破坏前的短临应变前兆研究[J].地震研究,2001,24(3):191-196. |
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| 作者姓名： | 许昭永 杨润海 赵晋明 华培忠 王彬 梅世蓉 |
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| 作者单位： | 1. 云南省地震局,
2. 中国地震局分析预报中心, |
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| 基金项目： | 中国地震局“九五”科技攻关项目“强地震予测予报技术研究”子专题 :95 -0 4-0 3-0 2 -0 3 |
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| 摘 要： | 采用新型应变仪观测岩样在破坏孕育过程中岩样表面测点的应变变化，结果除了长趋势变化，破坏前几秒的特征变化外，在破坏前百分之几秒至十分之几秒还有突变和拢动等特征变化。
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| 关 键 词： | 短临前兆 应变 岩石破坏 地震前兆 地震预报 |
Study on Short-impending Strain Precursors before Rock Samples Failure |
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| Xu Zhaoyong Yang Runhai Zhao Jinming Hua Peizhong Wang Bin Mei Shirong ? Seismological Bureau of Yunnan Provicne,Kunming ,China Center for Analysis and Prediction,China Seismologic.Study on Short-impending Strain Precursors before Rock Samples Failure[J].Journal of Seismological Research,2001,24(3):191-196. |
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| Authors: | Xu Zhaoyong Yang Runhai Zhao Jinming Hua Peizhong Wang Bin Mei Shirong ? Seismological Bureau of Yunnan Provicne Kunming China Center for Analysis and Prediction China Seismologic |
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| Institution: | Xu Zhaoyong 1) Yang Runhai 1) Zhao Jinming 1) Hua Peizhong 1) Wang Bin 1) Mei Shirong ?2) 1)Seismological Bureau of Yunnan Provicne,Kunming 650041,China 2)Center for Analysis and Prediction,China Seismologic |
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| Abstract: | Using new strain instruments,the variations in strain of surveying points on the rock sample surface in rupture preparation processare are observed. The results show there are characteristic variations of mutation and disturbance in several to tens percent of second before the failure besides long-trend variation and characteristic variation several seconds before the failure. |
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| Keywords: | Short-impending precursor strain rock failure |
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