四川北川川41井动水位动态特征及干扰分析  

Analysis of Dynamic Characteristics and Disturbance Factors at Beichuan Chuan 41 Well in Sichuan

作　　者：梁慧[1] 张映 赵德杨 魏娅玲[2] 王迪 胡俊明[1] 刘华姣 王斌[3] 赖康建 LIANG Hui;ZHANG Ying;ZHAO Deyang;WEI Yaling;WANG Di;HU Junming;LIU Huajiao;WANG Bin;LAI Kangjian(Chengdu Earthquake Monitoring Center Station of Sichuan Earthquake Agency,Sichuan Chengdu 611730;Sichuan Earthquake Agency,Sichuan Chengdu 610059;Aba Earthquake Monitoring Center Station of Sichuan Earthquake Agency,Sichuan Aba 623300;Earthquake Monitoring Center of Emergency Management Bureau of Beichuan Qiang Autonomous County,Mianyang City,Sichuan Province,Sichuan Beichuan 622750)

机构地区：[1]四川省地震局成都地震监测中心站,四川成都611730 [2]四川省地震局,四川成都610059 [3]四川省地震局阿坝地震监测中心站,四川阿坝623300 [4]四川省绵阳市北川羌族自治县应急管理局地震监测中心,四川北川622750

出　　处：《四川地震》2023年第4期19-23,35,共6页Earthquake Research in Sichuan

基　　金：四川省地震局地震科技专项(LY2317,LY2201)资助.

摘　　要：本文收集和梳理了四川北川川41井(以下简称川41井)2017—2022年动水位资料,分析了该井所处构造地质背景、环境干扰因素、固体潮效应以及动水位年变动态特征。结果表明:川41井动水位、中层水温受降水影响显著,年变形态受气压、固体潮效应及环境因素影响较小,不同观测仪器记录显示中层水温存在相似的年变动态特征,相同仪器记录显示动水位、中层水温多年年变形态略有不同,其原因可能与降雨量有关。通过分析,可以为数据跟踪分析和地震异常识别提供支撑。This paper collected and sorted out the dynamic water level data of the Sichuan well 41 from 2017 to 2022,and analyzeed the geological background,environmental interference factors,solid tide effect and the annual dynamic characteristics of the dynamic water level.The results showed that the well moving water level and the middle water temperature were significantly affected by precipitation.Moreover the annual variable pattern was less affected by the air pressure,solid tide effect and environmental factors.The middle water temperature showed similar annual dynamic characteristics,while the middle water temperature was slightly different from the same instrument,which might be related to the precipitation.Through the above analysis,the rainfall can provide support for data tracking analysis and seismic anomaly identification.

关 键 词：川41井 水位特征 干扰因素 动态特征 

分 类 号：P315.7[天文地球—地震学]