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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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