| 云鹏水电站及其周围地震尾波Q_c值研究 |
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| 引用本文： | 赵小艳,付虹,毛玉平,邬成栋.云鹏水电站及其周围地震尾波Q_c值研究[J].地震研究,2010,33(1). |
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| 作者姓名： | 赵小艳 付虹 毛玉平 邬成栋 |
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| 作者单位： | 云南省地震局,昆明,650224 |
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| 基金项目： | 国家科技支撑计划"水库诱发地震监测与分析处理技术研究"，云南省科技攻关项目"复杂构造区水库地震监测预警研究" |
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| 摘 要： | 利用云鹏水电站周边5个数字地震台站记录到的2000年1月至2008年12月间的108个地震的数字波形资料,采用Aki单次散射模型,计算了各台站周围423条地震记录的尾波Q0值。结果显示:云鹏水电站地区尾波的Qc值与频率的关系为Qc(f)=90.2f0.94。该地区的Q0值比云南其它构造活动强烈地区的要高,因此属于中等构造活动地区。云鹏水电站蓄水后弥勒台记录到的108个地震的尾波Q0值及分频Qc值有所下降,但下降幅度不大,表明水库蓄水对库区及其附近区域地下介质性质有所影响,但影响的程度有限。
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| 关 键 词： | 云鹏水电站 尾波Q_c值 Aki单次散射模型 |
Research of Coda Q_c-Value of Yunpeng Hydropower Station and Its Adjacent Regions |
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| ZHAO Xiao-yan,FU Hong,MAO Yu-ping,WU Cheng-dong.Research of Coda Q_c-Value of Yunpeng Hydropower Station and Its Adjacent Regions[J].Journal of Seismological Research,2010,33(1). |
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| Authors: | ZHAO Xiao-yan FU Hong MAO Yu-ping WU Cheng-dong |
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| Abstract: | The coda-wave-attenuation-quality factor Q_0 in Yunpeng Hydropower Station attenuation model based on 108 local seismic events recorded by 5 regional digital seismic stations from January 2000 to December 2008.The result shows that the relationship between Q_0 and f can be described as Q_c(f)=90.2f~(0.94).Compared with the ones in other areas of Yunnan with strong tectonic seismic activity,the values are higher in this area with moderate tectonic activity.The Q_0 and Q_c values declined a little after the Yunpeng reservoir impounded water;this means that the water storage has influenced the medea character in this area,but the effect is limited. |
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| Keywords: | Yunpeng Hydropower Station Q_c-value of coda Aki's single scattering attenuation model |
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