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Simulationoffluvial?pluvialfloodingprocessesinatypicalurbanareaconsideringrole
oflowimpactdevelopment(LID)measuresandjointoperationfor
hydraulicstructures:CasestudyinFuzhouCity
1,2
1,2
YEChenlei ,XUZongxue
(1.BeijingKeyLaboratoryofUrbanHydrologicalCycleandSpongeCityTechnology,Beijing 100875,China;
2.CollegeofWaterSciences,BeijingNormalUniversity,Beijing 100875,China)
Abstract:Urbanwaterengineeringschedulingandlowimpactdevelopment(LID)measuresplayanimportantrole
incopingwithurbanstormflooding.TheJin ’anRivercatchmentinthedowntownofFuzhouCityisselectedasthe
studyareainthispaper ,andanintegratedhydrologicalandhydrodynamicsimulationframeworkwasproposed.The
floodingresponseunderreal - timecontrolschedulingisanalyzedseparatelyfrom thewhole - areaperspective ,and
thefloodingprocessunderthesynergisticeffectoflow - impactdevelopmentmeasuresandjointschedulingisana
lyzedfromthecommunityscalebyselectingtypicalcommunities.Theresultsshowthatthewaterlevelofthedown
streaminlandriverscanbeeffectivelycontrolledbyjointschedulingofupstream waterengineeringatthewhole
catchmentscale ,andthemainrivercross - sectionofJinanRiver,whichisclosertoQintingLake,ismoresignifi
cantlyaffectedbythereal - timeschedulingschemecomparedwiththedownstreamcross - section.Whenriverover
flowisnotconsidered ,theeffectofjointschedulingonriverlevelissignificantlygreaterthantheeffectoninunda
tion.ThesynergisticeffectofLIDmeasuresandwaterengineeringschedulingoninundationisevidentwhenconsid
2
eringriveroverflowatthecommunityscale.Theinundationareaoftypicalblockswasreducedfrom 7.57hm to
2
4.85hm underthedesignrainfallwithareturnperiodof100yearsandadurationof2hours.Whentheobserved
2 2
rainfalldataduringtyphoon“Soudelor”wasused,theinundationareawasreducedfrom22.87hm to9.83hm .
Thisstudywillprovideanimportantreferenceforthemeasuresofurbanfloodcontrolanddisasterreduction.
Keywords:urban;fluvial?pluvialflooding;hydrologicalandhydrodynamicmodel;jointoperation;spongecity
(责任编辑:韩 昆)
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