双王井数字化观测资料前兆及干扰异常分析

Analysis of precursors and interference anomalies of digital observation data in Shuangwang well

近年来,渭南双王井已经积累了大量准确可靠的流体观测资料,但并未对该资料进行过系统的清理和分析。本文对双王井自数字化观测之日起至2021年底(2007年6月1日—2021年12月31日)的地下流体数字化观测资料进行了系统的整理,以双王井水位及水温观测的干扰及震前异常观测资料为研究对象,分析数字化观测资料的变化情况,通过其干扰和震前异常下曲线的形态,从水位、水温的趋势变化特征、固体潮特征、同震变化、地震前兆异常与典型干扰异常等方面进行了分析,研究双王井地下流体资料的变化特征,对观测数据反映的信息进行总结和应用,为今后渭南及周边地区水温、水位异常落实和地震预测研究提供科学的参考依据。

In recent years,Shuangwang well in Weinan has accumulated a large number of accurate and reliable fluid observation data,but the data has not been systematically cleaned and analyzed.We systematically sorted the digital observation data of underground fluid in Shuangwang well from the date of digital observation start to the end of 2021(1 June 2007 to 31 December 2021).Taking the interference and pre-earthquake anomaly observation data of water level and water temperature observation of Shuangwang well as the research object,the changes of digital observation data were analyzed,and the shape of the curve under the interference and pre-earthquake anomaly was analyzed.Analysis was carried out from the aspects of trend change characteristics,characters of earth tide,coseismic variations,preseismic anomalies and typical interference anomalies,and the change characteristics of the underground fluid data of Shuangwang well were researched,and the information reflected in the observational data were summarized and applied.It will provide scientific basis for the study of water temperature and water level anomalies and earthquake prediction in Weinan and its surrounding areas in the future.