| 水库断层岩溶带地震波波速比研究 |
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| 引用本文： | 陈俊华,甘家思,魏贵春,蒋玲霞.水库断层岩溶带地震波波速比研究[J].人民长江,2011,42(3):23-26. |
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| 作者姓名： | 陈俊华 甘家思 魏贵春 蒋玲霞 |
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| 作者单位： | 湖北省地震局,监测预报中心,湖北,武汉,430071 |
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| 摘 要： | 采用固定台站法计算了三峡水库蓄水期间，高桥断层附近断层岩溶地区记录到的ML2.0以上地震的波速比，并对研究区内沿断裂带及透水性不同地层的内波速比值等进行对比分析。结果表明，断层岩溶带地区受库水影响，波速比值偏高，波速比与不同地层岩石的透水性成正比，断层岩溶带地区孕育较大水库地震的可能性不大。
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| 关 键 词： | 断层岩溶带 固定台站法 波速比 高桥断层 水库地震 三峡库区 |
Study on wave velocity ratio of fault karst zone of reservoir |
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| CHEN Junhua,GAN Jiasi,WEI Guichun,JIANG Lingxia.Study on wave velocity ratio of fault karst zone of reservoir[J].Yangtze River,2011,42(3):23-26. |
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| Authors: | CHEN Junhua GAN Jiasi WEI Guichun JIANG Lingxia |
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| Affiliation: | CHEN Junhua,GAN Jiasi,WEI Guichun,JIANG Lingxia (Earthquake Monitoring Center,Earthquake Administration of Hubei Province,Wuhan 430071,China) |
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| Abstract: | During the impoundment of Three Gorges Reservoir,the fixed-station method is applied to calculate the wave velocity ratio of recorded reservoir-induced earthquakes above ML2.0 in fault karst zone areas near the Gaoqiao fault.Furthermore,the contrastive analysis on wave velocity ratio along the fault zone and within the different permeability rock strata is carried out.The result shows that,affected by water in the reservoir,the value of wave velocity ratio in fault karst zone area is higher,and the wave vel... |
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| Keywords: | fault karst zone fixed-station method wave velocity ratio Gaoqiao fault reservoir-induced earthquake Three Gorges Reservoir area |
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