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1∗,210093[]BOTDRBOTDRBOTDR[]BOTDR1.BOTDR985BOTDR2.BOTDR(B)∗40225006010862BOTDR1BOTDRBBOTDROTDROpticalTime-DomainReflectometer,BOTDR1BBOTDRZ(1)1BOTDR1CB2cTZn=1cn3TBOTDRNTTAQ8603BOTDR1AQ86031AQ8603(km)12510204080(m)1.000.500.200.100.05(m)(2.0105(m)0.2m2(m))1.51.515,000µε(ns)102050100200(m)12511220.004(40µε)0.003(30µε)0.040.023.BOTDR3.1AQ860325cm120cm10cm120cm23.1.143.1.21m1.5m343543.2BOTDRdδε=g2d∫∫−=dxdxdy21εε312d64.BOTDRBOTDR55BOTDR1.2.3.4.7BOTDR∫∫−=dxdxdxvx)()(ε4xεd)(xv5.CRCP[89]BOTDRCRCP6BOTDR119458675BOTDR79m727476788082-120-100-80-60-40-20020406080100µεm711712713714715785BOTDR9120122124126128-120-100-80-60-40-20020406080100µεm7117127137147158BOTDRBOTDR6.1.HoriguchiTKurashimaTTatedaM.TensilestraindependenceofBrillouinfrequencyshiftinsilicaopticalfibers.IEEEPhotonicsTechnologyLetters19891(5):107~1082.OhnoHNaruseHKiharaMShimadaA,IndustrialapplicationsoftheBOTDRopticalfiberstrainsensor.OpticalFiberTechnology20017(1):45~643.WuZS,TakahashiT,KinoHandHiramatsuK,CrackMeasurementofConcreteStructureswithOpticFiberSensing.ProceedingsoftheJapanConcreteInstitute,2000,22(1):409~4144.WuZS,TakahashiTandSudoK,Anexperimentalinvestigationoncontinuousstrainandcrackmonitoringwithfiberopticsensors.ConcreteResearchandTechnology,200213(2):139~1485.LiCetal,Distributedopticalfiberbi-directionalstrainsensorforgastrunkpipelines.OpticsandLasersinEngineering,2001,36:41~47.6.UchiyamaH,SakairiY,NozakiT,AnOpticalFiberStrainDistributionMeasurement10InstrumentUsingtheNewDetectionMethod.ANDOTechnicalBulletin,2002,10:52~607.,Brillouin,1995,22(4)11~368...20032311-4.9...20002054-6.10.BOTDRVol.22,No.12,200311.ShiBinetal,AStudyontheapplicationofBOTDRinthedeformationmonitoringfortunnelengineeringStructuralHealthMonitoringandIntelligentInfrastructure,A.A.BalkemaPublishers,2003:1025-103012.,.BOTDR2003713.H.Z.Xu,B.Shi,DanZhang,YongDing,HeliangCui,Dataprocessinginbotdrdistributedstrainmeasurementbasedonwaveletanalysis,StructuralHealthMonitoringandIntelligentInfrastructure,A.A.BalkemaPublishers,2003:345-34914.,..,2003,20(3):91-9515.BOTDR20033611:83-8716.DanZhang,BinShi,HongzhongXu,YongDing,HeliangCui&JunqiGao,ApplicationofBOTDRintostructuralbendingmonitoring,StructuralHealthMonitoringandIntelligentInfrastructure,A.A.BalkemaPublishers,2003:271-27617.DanZHANG,BinSHI,JunqiGAO,HongzhongXU,TherecognitionandlocationofcracksinRCT-beamstructuresusingBOTDR-baseddistributedopticalfibersensor,SPIE,200418.BOTDRT19.2003283-29120.Ding,Y.,Shi,B.,Cui,H.L.,Gao,J.Q.,&Chen,B.2003.Thestabilityofopticalfiberasstrainsensorunderinvariablestress.StructuralHealthMonitoringandIntelligentInfrastructure,A.A.BalkemaPublishers,2003:267-270