Page 188 - 《水资源与水工程学报》2023年第3期
P. 188

!34 " ! 3 #                       & ' ( ) & * + , -                               Vol.34No.3
               2023 $ 6 %               JournalofWaterResources&WaterEngineering                 Jun.,2023

            DOI:10.11705/j.issn.1672-643X.2023.03.23


                    '¸÷] G2-AEW -UMT ˜™]20ìˆ


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                 ABCDE:TV698.2   FGHIJ:A    FKLE:1672643X(2023)03018409

                           Safetyriskevaluationanddiagnosisofhydraulictunnel
                                constructionbasedonG 2-AEW -UMTModel

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                    LIUWanlin,YINHang ,SUYang,LUOHaifeng,JINChunling,DANGDandan
               (1.ChinaRailwayDevelopmentandInvestmentGroupCo.,Ltd.,Kunming650501,China;2.ThirdBranchofChinaRailway
                  SeventhBureauGroupCo. ,Ltd.,Xi’an712000,China;3.SchoolofCivilEngineering,LanzhouJiaotongUniversity,
                     Lanzhou730070,China;4.ChinaRailwaySouthwestResearchInstituteCo.,Ltd.,Chengdu611731,China)
                 Abstract:InordertoreducetheconstructionsafetyriskoftunnelsinYunnanCentralWaterDiversion
                 Projectandpreventtheoccurrenceofconstructionaccidents,itisnecessarytopredicttheriskfactorsin
                 advance.Consideringtheconstructionriskinducingenvironmentandhydrological ,climaticandgeolog
                 icalfactors ,weselected8primaryindicesand19secondaryindicestobuildasafetyriskevaluationindex
                 systemfortheconstructionofhydraulictunnels,takingthespecificationsandengineeringpracticeinto
                 account.TheimprovedG2andantientropyweight (AEW)methodwereintroducedtocalculatethesub
                 jectiveandobjectiveweightsoftheindices ,thentheuncertaintymeasurementtheory(UMT)andobsta
                 clefactordiagnosiswereappliedtoestablishtheG2-AEW -UMThydraulictunnelconstructionsafety
                 riskevaluationmodel.ThemodelvalidationwascarriedoutonthesimulationoftheNo.7tunnelofa
                 project ,andtheresultsshowedthattheobstacledegreeofclimaticconditionsintheslantingsection,in
                 letsectionandoutletsectionofthetunnelscoresthehighest,whichare27.79%,32.97% and

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