基于分布式光纖測(cè)溫技術(shù)的堤壩滲漏監(jiān)測(cè)研究.pdf

1、聲明尸明本學(xué)位論文是我在導(dǎo)師的指導(dǎo)下取得的研究成果，盡我所知，在本學(xué)位論文中，除了加以標(biāo)注和致謝的部分外，不包含其他人已經(jīng)發(fā)表或公布過(guò)的研究成果，也不包含我為獲得任何教育機(jī)構(gòu)的學(xué)位或?qū)W歷而使用過(guò)的材料。與我一同工作的同事對(duì)本學(xué)位論文做出的貢獻(xiàn)均已在論文中作了明確的說(shuō)明。研究生簽名：羔碰滬l壚年弓月吒研究生簽名：叁至f竺滬ly年’月3日學(xué)位論文使用授權(quán)聲明南京理工大學(xué)有權(quán)保存本學(xué)位論文的電子和紙質(zhì)文檔，可以借閱或上網(wǎng)公布本學(xué)位論文的部分或

2、全部?jī)?nèi)容，可以向有關(guān)部門(mén)或機(jī)構(gòu)送交并授權(quán)其保存、借閱或上網(wǎng)公布本學(xué)位論文的部分或全部?jī)?nèi)容。對(duì)于保密論文，按保密的有關(guān)規(guī)定和程序處理。研究生簽名：沙l≯年≥月齲Abstract碩士論文AbstractDistributedopticalfibersensingtechnologywithitshugeadvantagebegantobeappliedbytheresearchersinmonitoringtheleakage，buthow

3、tousewhatkindofdistributedopticalfibertechnologylayingopticalfiberandwhatisthescopeofapplicationandmanyissues，hasnotsolvedThispaperconductedthefollowingresearch：1，Thispapercomparestheadvantagesanddisadvantagesofsixkindso

4、fleakagemonitoringmethod，analyzedthedistributedopticalfibertemperaturesensingtechnologyusedinthetheoreticalfeasibilityofseepagemonitoring，alsoAnalyzesthecharacteristicsofthedistributedtemperaturesensingtechnologybasedont

5、heRayleigh，brillouinandRamanscatteringprinciple，andbuildasetofdistributedopticalfibersensingmonitoringsystemofleakage2，Thecalculationmethodofthetwo—dimensionalsteadyanisotropicseepageandthecalculationequationsoftemperatu

6、refieldundertheactionofseepagefieldisprovedtheoreticallytoprovidetheoreticalsupportfortheanalysisoftemperaturefield3，AccordingtOtheresultoflaboratorytestandfieldtest，thispaperanalyzesthebrillouinandRamanmethodontheseepag

7、emonitoringofstabilityandprecision，andevaluatethefeasibilityapplicabilityofthetwomethodsandapplicableconditionsAndalsoanalyzestheadvantagesanddisadvantagesandapplicableconditionsofgradientmethodandheatingmethodoftheRaman

8、methodmonitoringseepageCombiningwiththeexperienceoffiberlaying，providessomesuggestionaboutopticalfiberlayingposition，methodandattentionpoints4，Thefiniteelementmodelofdamseepageflowfieldandtemperaturefieldispresentedandse

9、epageandthetemperaturefieldcontoursisobtainedThispaperanalyzesthedambodyandfoundationseepageaboutwaterhead，crosssectionflowtheseepageline，seepagepathandvelocityvectordistributionandthedistributionofthetemperature，focuses

10、onthemaximumvelocityandmaximumtemperaturegradientinthedamfoundationoftwO—dimensionaldistribution，accordingtothecalculationresultstodeterminetheopticalfiberlayingthebestplace。Throughtheresultsoffieldtestandfiniteelementmo

11、delanalysis，cangetthefollowingimportantconclusions：1，BrillouinandRamanmethodhasthefeasibilityontheseepagemonitoring，theformerismoreneedtopayattentiontoprotectionwork，thelatterhasmoreadvantagesonthestabilityaccuracyandenv