徐芳芳,朱成林,贾媛,等.东平台分量应变与体应变可靠性分析及特殊事件影响对比[J].地震科学进展,2023,53(2):86-92.doi:10.19987/j.dzkxjz.2022-080XuFF,ZhuCL,JiaY,etal.ReliabilityanalysisofcomponentstrainandvolumestrainatDongpingseismicstationandcomparisonofinfluenceofspecialevents[J].ProgressinEarthquakeSciences,2023,53(2):86-92.doi:10.19987/j.dzkxjz.2022-080东平台分量应变与体应变可靠性分析及特殊事件影响对比*徐芳芳朱成林※贾媛卢双苓(山东省地震局,山东济南250014)摘要本文通过四分量自检、相对标定内精度分析对东平地震台YRY-4钻孔分量应变观测资料进行可靠性分析,并结合滑动相关性计算、潮汐因子内精度对2套仪器数据进行了对比,证明YRY-4钻孔分量应变2面应变相关性高,相关系数接近1,相对标定内精度高,与体应变数据整体趋势一致。2套仪器观测环境一致,运行稳定,数据正常可靠,但也存在降雨、场地干扰特殊时段曲线表现不一致的情况。针对2种特殊情况结合相关性计算、S变换进行了对比分析。结果表明,降雨时段,因钻孔条件差别较大,2套仪器数据相关性较差,接近0;场地干扰时段,2套仪器观测系统均受到影响,频率域同步出现干扰信号,影响数据曲线形态及潮汐因子精度,但2套仪器面应变相关性达0.91。综合分析,东平台钻孔应变仪与体应变2套仪器观测系统是可靠稳定的。关键词分量钻孔应变;体应变;可靠性分析;特殊事件;降雨干扰;场地干扰中图分类号:P315.72+5文献标识码:A文章编号:2096-7780(2023)02-0086-07doi:10.19987/j.dzkxjz.2022-080ReliabilityanalysisofcomponentstrainandvolumestrainatDongpingseismicstationandcomparisonofinfluenceofspecialeventsXuFangfang,ZhuChenglin,JiaYuan,LuShuangling(ShandongEarthquakeAgency,ShandongJi’nan250014,China)AbstractInthispaper,thereliabilityanalysisoftheYRY-4boreholecomponentstrainobservationdataatDongpingseismicstationiscarriedoutthroughthefour-componentself-checkandtherelativecalibrationinternalaccuracyanalysis.Thedataofthetwoinstrumentsarecomparedbycombiningtheslidingcorrelationcalculationandtheinternalaccuracyofthetidalfactor.ItisprovedthatthetwosurfacestraincorrelationoftheYRY-4boreholecomponentstrainishigh,andthecorrelationcoefficientiscloseto1.Therelativecalibrationinternalaccuracyishig...