| 金属大棚对周口台地电阻率干扰定量分析 |
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| 引用本文： | 杨龙翔,刘学谦,孙召华.金属大棚对周口台地电阻率干扰定量分析[J].西北地震学报,2020,42(2):447-452. |
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| 作者姓名： | 杨龙翔 刘学谦 孙召华 |
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| 作者单位： | 河南省地震局, 河南 郑州 450000 |
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| 基金项目： | 中国地震局专项：全国地球物理台网数据跟踪分析与产出 |
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| 摘 要： | 周口地电阻率观测2015年出现异常变化,因异常期间该台场地存在较多干扰源。为正确评价该次异常,在电测深结果的基础上建立三维数值模型,采用有限元数值计算,定量评估该台测区周围金属蔬菜大棚等干扰源对地电阻率观测的影响量。结果表明:金属大棚可能是周口台本次地电阻率异常的主要影响因素。
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| 关 键 词： | 地电阻率 有限元分析 干扰 |
| 收稿时间： | 2019/6/8 0:00:00 |
Quantitative Analysis of the Disturbance to Earth Resistivity Caused by a Metal Greenhouse at Zhoukou Station |
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| YANG Longxiang,LIU Xueqian,SUN Zhaohua.Quantitative Analysis of the Disturbance to Earth Resistivity Caused by a Metal Greenhouse at Zhoukou Station[J].Northwestern Seismological Journal,2020,42(2):447-452. |
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| Authors: | YANG Longxiang LIU Xueqian SUN Zhaohua |
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| Institution: | Henan Earthquake Agency, Zhengzhou 450000, Henan, China |
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| Abstract: | The earth resistivity observations in Zhoukou station showed an anomaly in 2015 due to disturbance sources near the station. To correctly evaluate this anomaly, this study established a 3D numerical model on the basis of electrical sounding results. The influences of disturbance sources near the station on earth resistivity observations were quantitatively assessed by using the finite element method. Calculation results suggested that the disturbance from a metal greenhouse was the main influencing factor of the anomaly. |
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| Keywords: | earth resistivity finite element analysis disturbance |
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