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高层建筑物变形监测数据处理与分析.docx

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高层建筑物变形监测数据处理与分析 Introduction Tallbuildingsareanintegralpartofmodernurbandevelopmentandareessentialinmeetingtheneedsofurbanization.However,withatrendofincreasingheightofbuildings,deformationoftallbuildingshasbecomeacommonissuethatcanleadtosevereconsequencesifitisnotdetectedandcorrectedintime.Therefore,itisessentialtomonitorandanalyzethedeformationoftallbuildingstoensurethesafetyanddurabilityofthestructures.Thedataprocessingandanalysisofhigh-risebuildingdeformationmonitoringwillbethefocusofthispaper. DeformationMonitoringTechniques Deformationmonitoringtechniquescanbecategorizedintotwotypes:directandindirect.ThedirectdeformationmonitoringtechniquesincludeTotalStationSurveying,GlobalNavigationSatelliteSystem(GNSS),andanInclinometer.TheindirectdeformationmonitoringtechniquesincludeInterferometricSyntheticApertureRadar(InSAR)anddigitalphotogrammetry.Eachofthesetechniqueshasitsadvantagesandlimitations. TotalStationSurveyingtechniqueisawidelyavailableandpowerfulinstrumentusedtomonitorandmapthedeformationofstructures.Theaccuracyofthistechniquedependsonthequalityofinstrumentsandequipmentandtheexperienceandskillsofthepersonneloperatingthem.GNSSisasatellitenavigationsystemthatenablesaccurateandreliablepositioningandmonitoringofstructureswithgreatspeedandprecision.Inclinometerisasensorusedtomeasuretheslopeorinclinationofstructuresandisidealformeasuringtheinclinationofembankmentsandfoundationsystems. InSARusessatellitedatatorecordchangesintheheightofstructurescausedbygroundmovement,thusitissuitableformonitoringthedeformationoftallbuildings.Digitalphotogrammetryisamethodthatusesaerialphotographsfortriangulationmeasurementstocreateprecisethree-dimensionalmodelsofsurfacesandstructures.Thenon-contactnatureofthistechniquemakesitsuitableformonitoringdeformationinhigh-risestructureswheretheuseoftraditionalsurveyingequipmentcanbechallenging. DataProcessingandAnalysis Dataprocessingisacriticalstepindeformationmonitoring,anditinvolvesremovingnoiseanderrorsfromtherawdatatoobtainaccuratean