Application of passive source surface-wave method in site engineering seismic survey

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摘要 Siteengineeringseismicsurveyprovidesbasicdataforseismiceffectanalysis.Asanimportantparameterofsoil,shear-wavevelocityisusuallyobtainedthroughwavevelocitytestinginborehole.Inthispaper,thepassivesourcesurface-wavemethodisintroducedintothesiteengineeringseismicsurveyandpracticallyappliedinanengineeringsiteofShijingshanDistrict.Byrecordingtheubiquitousweakvibrationontheearthsurface,extractthedispersioncurvefromthesurface-wavecomponentsusingtheSPACmethodandobtaintheshear-wavevelocitystructurefrominversion.Overthedepthof42munderground,ittotallyconsistsoffivelayerswithinterfacedepthof3.31,4.50,7.23,17.41,and42.00m;andshear-wavevelocityof144.0,198.3,339.4,744.2,and903.7m/s,respectively.Theinversionresultisusedtoevaluatesiteclassification,determinethemaximumshearmodulusofsoil,providebasisforfurtherseismichazardanalysisandsiteassessmentorsitezoning,etc.Theresultshowsthatthepassivesourcesurface-wavemethodisfeasibleinthesiteengineeringseismicsurveyandcanreplaceboreholes,shortensurveyperiod,andreduceengineeringcosttosomeextent.
机构地区 不详
出处 《地震学报:英文版》 2014年1期
出版日期 2014年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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