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
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ABCDE:TV698.2 FGHIJ:A FKLE:1672643X(2023)03018409
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.Consideringtheconstructionriskinducingenvironmentandhydrological ,climaticandgeolog
icalfactors ,weselected8primaryindicesand19secondaryindicestobuildasafetyriskevaluationindex
systemfortheconstructionofhydraulictunnels,takingthespecificationsandengineeringpracticeinto
account.TheimprovedG2andantientropyweight (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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