Page 189 - 《水资源与水工程学报》2023年第3期
P. 189
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29.75%,respectively;thatofgeologicalconditionsintheupstream sectionisthehighest,whichis
28.93%;andthatofhydrologicalconditionsinthedownstream sectionscoresthehighest,whichis
22.96%.Accordingtothecomprehensivediagnosis,themainobstaclefactorsaffectingtheconstruction
safetyofNo.7tunnelareclimatic ,hydrologicalandgeologicalconditions,themeanvalueoftheobstacle
degreeis49.55% andtheriskrangedegreeis62.5%,sotheconstructionsafetyrisklevelofthishy
draulictunnelisevaluatedas Ⅱ,whichiscategorizedasthemediumrisk.Comparedwiththeprevious
research ,thefuzzycomprehensiveevaluationresultsareconsistentwiththeengineeringpractice,there
fore ,theproposedmodelisfeasible.Thecombinedmodelofunconfirmedmeasurementtheoryandobsta
clefactordiagnosisisapplicabletothehydraulictunnelconstructionsafetyriskevaluationwithhighfeasi
bilityandcalculationaccuracy,whichcanprovideanewapproachforthesafetyriskevaluationanddiag
nosisofthehydraulictunnelconstructionintheYunnanCentralWaterDiversionProject.
Keywords:hydraulictunnels;constructionsafetyriskevaluation;indexsystem;uncertaintymeasure
menttheory;obstaclefactordiagnosis;YunnanCentralWaterDiversionProject
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