永年地震台水管倾斜仪降水干扰异常判定  

Rainfall interference analysis of water tube tiltmeter at Yongnian Seismic Station

作　　者：侯晓真[1] 屈曼[1] 陈建国[1] 张双凤[2] 牛淑瑜 马栋[1] 王时 刘燕翔[5] Hou Xiaozhen;Qu Man;Chen Jianguo;Zhang Shuangfeng;Niu Shuyu;Ma Dong;Wang Shi;Liu Yanxiang(Hebei Earthquake Agency,Shijiazhuang 050021,China;Handan Central Seismic Station,Hebei Earthquake Agency,Hebei Province 056000,China;Shijiazhuang Central Seismic Station,Hebei Earthquake Agency,Hebei Province 050021,China;Yixian Seismic Station,Hebei Earthquake Agency,Hebei Province 071000,China;Zhangjiakou Central Seismic Station,Hebei Earthquake Agency,Hebei Province 057000,China)

机构地区：[1]河北省地震局,中国石家庄050021 [2]河北省地震局邯郸中心台,中国河北056000 [3]河北省地震局石家庄中心台,中国河北050021 [4]河北省地震局易县地震台,中国河北071000 [5]河北省地震局张家口中心台,中国河北057000

出　　处：《地震地磁观测与研究》2018年第3期163-169,共7页Seismological and Geomagnetic Observation and Research

基　　金：河北省地震局科技星火项目(项目编号:DZ20170510063;DZ20160329010)

摘　　要：针对河北永年地震台水管仪2016年7月21日EW分量快速西倾、NS分量快速北倾的异常现象,进行现场详细调查及排查,发现受7月19日—20日强降雨影响,台站西北方向出现有限范围的雨水汇集区,造成该区域荷载发生迅速变化,利用荷载模型进行定量计算,进一步分析该影响因素对观测结果的影响。Since July 21, 2016, EW and NS component of the instrument have declined rapidly towards the west and north, respectively. After a detailed investigation and screening on these exceptional conditions of water tube tiltmeter at Yongnian Seismic Station, we found that the heavy rainfall interference from July 19 to 20 lead to a large collection area in the northwest of the station, which resulted in a rapid change in load. In order to further analyzing the abnormal effects, we will make quantitative calculation by using load-model.

关 键 词：荷载模型 水管仪 降雨干扰 

分 类 号：P315.7[天文地球—地震学]