【摘要】 2020年5月九江1井水位出现大幅突降，九江地震监测中心站形变观测仪器测值均出现异常。通过对九江中心站自然环境、观测系统、人为干扰等情况进行排查，并对九江2井进行加密监测，即利用井下电视对九江2井的地下结构进行探查，此次异常与2008年9月钻井对形变数据产生的异常进行对比分析。结合该区域水文地质情况分析认为，2020年5月九江1井水位异常为非地震区域性构造活动。通过数据分析，总结了地下水位对定点形变观测数据的影响因素。更多还原

【Abstract】 In May 2020,a significant sudden drop in the water level of Well 1 in Jiujiang was observed,accompanied by anomalies in the deformation measurement values recorded by the instruments at the Jiujiang Earthquake Monitoring Center Station.An investigation was conducted into the natural environment of the Jiujiang Center Station,the observation system,and potential human interferences.Furthermore,enhanced monitoring of Well 2 in Jiujiang was implemented,including exploring the underground structure of Well 2 by using downhole television.The anomaly was compared and analyzed against the anomalies produced in the deformation data by drilling in September 2008.Considering the hydrogeological conditions of the area,it was concluded that the abnormal water level in Jiujiang Well 1 in May 2020 was due to non-seismic regional tectonic activity.The influencing factors of groundwater level on fixed-point deformation data are summarized by analyzing data.更多还原