二灘高拱壩徑向變形監(jiān)控模型與監(jiān)控指標(biāo)研究.pdf

1、天津大學(xué)碩士學(xué)位論文二灘高拱壩徑向變形監(jiān)控模型與監(jiān)控指標(biāo)研究姓名：王鋒輝申請學(xué)位級別：碩士專業(yè)：水利水電工程指導(dǎo)教師：楊敏20080101ABSTRACTItisdifficulttodetectthetemporaldamageofdamonlybyintuitiveapproachTovaluatestatusofdamsafetyduringoperation，peoplemustanalysemonitoringdataanda

2、doptsuitablemethodstopreventdamaccidentForthisimportantsubject，thepaperdiscussesseveralmethodsandapplicationsofdamdeformationdataanalysisandindexdefinitionformonitoringdamsafety，andpresentsrecommendationofbuildingmanagem

3、entsystemofmonitoringdamsafetyThefollowingaresummarizesofthispaper(I)Thispaperanalyzedsafetymonitoringsystemofertandam，loadingorunloadingprocess，andtemperaturechangingofvariantimpoundingphase(2)Modelbuildingprocessofamul

4、tipleregressionmodelandrobustregressionmodelhasbeeninvestigated；thestructureandalgorithmofBPneuralnetworkmodelisstudied，thecommonneuralnetworkmodelisimproved，regressionmodelandBPneuralnetworkmodelarecompared；modelbuildin

5、gprocessofdeterministicmathematicmodelhasbeenresearched(3)Amultipleregressionmodel，robustregressionmodelandimprovedBPneuralnetworkmodelareappliedtotheforecastofhorizontaldisplacementfordamsafetymonitoringThemethodofdamho

6、rizontaldisplacementforecastisstudiedbasingoninfluencefactors，forecastingresultsofimprovedBPneuralnetworkmodelandregressionmodelarecomparedindetail(4)Theforecastmethodsofstatisticmodelandneuralnetworkmodelforhorizontaldi

7、splacementareinvestigatedbasingontemporalseries(5)Thedeterministicmathematicmodelofhorizontaldisplacementmonitoringforertandamarestudied，safetyevaluationofdamiscarriedoutroundlyusingcalculationalresultsofthemodelKeywords