| 永年地震台伸缩仪EW向张性异常分析 |
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| 引用本文： | 屈曼,马栋,侯晓真,陈建国,张双凤,牛淑瑜. 永年地震台伸缩仪EW向张性异常分析[J]. 地震地磁观测与研究, 2017, 38(2): 132-137. DOI: 10.3969/j.issn.1003-3246.2017.02.023 |
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| 作者姓名： | 屈曼 马栋 侯晓真 陈建国 张双凤 牛淑瑜 |
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| 作者单位： | 1. 中国石家庄 050021 河北省地震局;2. 中国河北 056001 邯郸地震中心台;3. 中国石家庄 050224 黄壁庄地震台 |
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| 基金项目： | 河北省地震局地震科技星火计划项目（项目编号：DZ20160329010） |
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| 摘 要： | 针对河北永年地震台伸缩仪EW分量2015年5月11日起出现的加速拉张变化,从仪器工作状态、洞室环境、气象条件和外界环境干扰等方面,进行调查分析。利用3种荷载模型计算道路施工荷载变化可能引起的应变变化量,并结合其他形变测项变化特征进行论证,认为永年伸缩仪张性变化是区域应力场调整的结果。
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| 关 键 词： | 应变 伸缩仪 荷载 形变 |
Analysis on abnormal tension of EW component of the extensometer at Yongnian Seismic Station |
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| Qu Man,Ma Dong,Hou Xiaozhen,Chen Jianguo,Zhang Shuangfeng,Niu Shuyu. Analysis on abnormal tension of EW component of the extensometer at Yongnian Seismic Station[J]. Seismological and Geomagnetic Observation and Research, 2017, 38(2): 132-137. DOI: 10.3969/j.issn.1003-3246.2017.02.023 |
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| Authors: | Qu Man Ma Dong Hou Xiaozhen Chen Jianguo Zhang Shuangfeng Niu Shuyu |
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| Affiliation: | 1. Earthquake Administration of Hebei Province, Shijiazhuang 050021, China;2. Handan Central Seismic Station, Hebei Province 056001, China;3. Huangbizhuang Seismic Station, Shijiazhuang 050224, China |
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| Abstract: | The tension acceleration of the EW component of the extensometer at Yongnian Seismic Station appears in May 11, 2015. In this paper, the instrument working condition, the cavern environment, the weather condition and the external environment interference, and so on, are investigated and analyzed. Three kinds of load models are used to calculate the strain variation of the load of road construction. We think that the tension anomaly of the extensometer in Yongnian is the result of the change of regional stress field. |
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| Keywords: | crustal strain extensometer load deformation |
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