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Reviewoncatastropheriskanalysisandmitigationofcascadehydropowercomplexes
1
2
LIUJiahong,ZHOUJinjun,WANGHao 1
(1.ChinaInstituteofWaterResourcesandHydropowerResearchStateKeyLaboratoryofSimulationandRegulationof
WaterCycleinRiverBasin ,Beijing 100038,China;
2.FacultyofArchitecture,CivilandTransportationEngineering,BeijingUniversityofTechnology,Beijing 100124,China)
Abstract:Withthefrequentoccurrenceofmassiveearthquake,extremerainstorm floodandgiantlandslide,the
riskassessmentandmitigationofcascadehydropowercomplexunderextremeloadhasbecomeahotresearchtopic
inthehydraulicengineeringfield.Inordertoanalyzetheresearchdevelopmentofcatastropherisk,wedrewthe
occurrencetimemapofthemaindamfailureevents,analyzedthefeaturesofcatastropheriskofcascadehydropow
ercomplexesintheworld,andreviewedtheresearchprogressofriskanalysisandmitigationofcascadehydropower
hubs.Themainconclusionswereasfollows:1)catastropheriskofcascadehydropowerprojectshavebecomethe
mainproblemsforwaterresourcesandhydropowerprojectsinChina ;2)theriskanalysisofcascadehydropower
complexgroupmainlyfocusesontheanalysisandcalculationofcascadereservoirfailureprobability,andthequan
titativeresearchoncatastrophelossthatmaybecausedbyoutburstisinsufficient,andthecatastropheriskassess
mentundertheeffectofdisaster - causingfactorsandtheirrelatedinfluencesislacking;3)Intheaspectofcatas
trophemitigationofwaterresourcesandhydropowerprojects,thereisalackofresearchonblockingtechnologyof
cascadehubgroupdisasterchainanddesignofemergencyhedgingscheme.Inthispaper,theconceptofProbable
MaximumDisaster (PMD)wasproposed,whichconsideredvarietyformativefactorsandhazard - affectedbodyfea
tures.We analyzed the mutualcausality and extreme load combination , and preliminarily established the
theoreticalmodelofPMDevaluation ,whichcanprovideatheoreticalbasisforscientificallydrawingthedisaster
spatialoutsourcinglineundercatastrophescenariosofcascadehydropowercomplexes,estimatingtheupperlimit
valueofPMDloss,andprovidingtheoreticalbasisandtechnicalsupportforcatastropheriskanalysisandmitigation
ofcascadehydropowercomplexes.
Keywords:waterresourcesandhydropowerprojects;cascadehydropowercomplexes;catastropherisk;Probable
MaximumDisaster (PMD);dambreakflood
(责任编辑:于福亮)
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