| 青川县桅杆梁斜坡地震动响应监测研究 |
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| 引用本文： | 罗永红,王运生,王福海,邓茜.青川县桅杆梁斜坡地震动响应监测研究[J].工程地质学报(英文版),2010,18(1):27. |
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| 作者姓名： | 罗永红 王运生 王福海 邓茜 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室 成都 610059 |
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| 基金项目： | 中国地调局项目资助:“汶川地震地质灾害调查评价”—川西深切河谷斜坡地震评价技术研究,编号1212010914010 |
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| 摘 要： | 本文采用941B型超低频测振仪及G01通用数采仪,自2009年5月13～27日,在青川县桅杆梁监测到4次余震。对山体斜坡高程805m和875m的余震地震动峰值加速度响应监测结果分析表明:相对于805m高程, 875m测点地震动峰值加速度在水平东西向以及垂向均呈减小趋势,而在水平南北向体现显著的放大效应,放大系数可达7～8倍,其FFT主频值主要集中为2～4Hz低频值。分析表明,所监测的微有感地震震中位于测点北侧的青川断裂上,沿地震波传播方向斜坡体具有显著放大效应作用。
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| 关 键 词： | 斜坡地震响应监测 最大峰值加速度 主频值 水平南北方向 显著放大效应 |
MONITORING OF SLOPE SEISMIC RESPONSE DURING AFTERSHOCKS OF WENCHUAN EARTHQUAKE IN QINGCHUAN COUNTY |
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| LUO Yonghong WANG Yunsheng WANG Fuhai DENG Xi.MONITORING OF SLOPE SEISMIC RESPONSE DURING AFTERSHOCKS OF WENCHUAN EARTHQUAKE IN QINGCHUAN COUNTY[J].Journal of Engineering Geology,2010,18(1):27. |
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| Authors: | LUO Yonghong WANG Yunsheng WANG Fuhai DENG Xi |
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| Institution: | State Key Laboratory of Geo Hazard Prevention and Geo Environment Protection,Chengdu University of Technology,Chengdu |610059 |
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| Abstract: | From May 13 to 27,2009,the seismic responses of a slope during four aftershocks of the 2008 Wenchuan Earthquake were monitored with the 941-B ultra-low-frequency vibrometer and G01 general-purpose instrument.The slope located at Wei Ganliang in Qingchuang county.The micro-seismic monitoring shows that relative to the 805 m elevation at the Wei Ganliang Mountain,the measured peak accelerations of ground motion at the 875 m elevation in the horizontal EW direction and vertical direction had the tendency of re... |
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| Keywords: | Monitoring Seismic response Slopes Maximum peak acceleration Main frequency Aftershocks Wenchuan Earthquake |
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