某校区雨水生态收集与利用实例

TechnicalmeasuresofrainwatercollectionandtreatmentforTangshanvocationschoolTotaltechnicaldesignAmbition

AnoptimalwatermanagementbyBMPstopromoterainwatercollectionandinfiltrationTechnicalmeasureszoneCentralaxisarea(Ceremonial

Square、Parkinglots、Studentarea)Patios、CentralcanalCentralaxisareaPatios、Centralcanal

TotaltechnicaldesignTechnicalrouteBMPs(Rainwatercollectionandinfiltration)RainfallVegetatedswaleCobbleditchGreenroofEcologicalditchPermeablepavement(Roadways、Parkinglots)(Patios、Studentarea)(Patios、CeremonialSquare)(CentralCanal)(Parkinglots)discargediscargeWaterbody(River、CentralCanal、Stream)TechnicaldesignforcentralaxisareaAstheCeremonialSquareisaformalarea,thetotaldesignconceptistraditional.TechnicalmeasuresfortheCeremonialSquareincludes:

Storminlet

PermeablepavementTechnicalmeasurefortheRoadwaysisvegetatedswale.TechnicalmeasurefortheParkinglotsisgreenroof.Technicalmeasureforgreenelements(eg.trees)issteelgrid.DesignscopeTechnicalmeasuresforCeremonialsquareStorminletofceremonialsquare

Allstorminletsontheceremonialsquareareuniformincolourandstyle.Storminletpromotespreliminaryrainwatercollection.TechnicalmeasuresforCeremonialsquarePermeablepavementof

ceremonialsquare

Permeablepavementisanappropriatechoiceforpromotingrainwaterinfiltration.Wesuggesttoadoptpermeablepavementasmuchaspossible.Thespecificdesignofceremonialsquareisdeterminedbylandscape.TechnicalmeasuresforroadwaysVegetatedswaleofroadwaysVegetatedswaleTechnicalmeasuresforroadsSchematicforvegetatedswale

Theroadcurbisdisconnected.Vegetatedswaleislowerthantheroadlevel.Porouspipepromotespreliminaryrainwaterinfiltration.sectionDifferentoptionsforvegetatedswaleDifferentoptionsforroadcurbVSTheroadlevelislowerthanthegreenbelt.Theroadcurbisconsecutive.Theroadlevelishigerthanthegreenbelt.Theroadcurbisdisconnected.PromotingrainwatercollectionNoentranceforrainwaterTechnicalmeasuresforSemi-basementParkinglotsGreenroofforSemi-basementParkinglotsTechnicalmeasuresforgreenelementsSteelgridfor

trees

Steelgridpromotespreliminaryrainwatercollection.Thesoilandcobblelayerinthesteelgridpromotesrainwaterinfiltration.TheroadlevelishigherthanthesoillevelTechnicalmeasuresforthestreamRainwaterdischargeintothestreamdispersedly

Rainwaterdischargeintothestreamdispersedly

Cobbleditch

Thestreamperformsasasmallstoragetankforrainwater.Rainwatercollectedbythecobbleditchisdischargedintothestreamdispersedly.RainwatercollectioninpatiosTocombinewiththelandscapeinpatios,thefollowingtechnicalmeasuresareadopted:CobbleditchalongroadsPermeablepavementDisconnectedimperviousareaUsestorminlettocollectrainwaterUseporouspipetotransportrainwaterDesignscopeRainwatercollectioninPatiosCobbleditchalongRoadsCobbleditchPorouspipeDrainagegrateRoadsCobbleditchsectionPermeablepavementRainwatercollectioninPatiosProposetousepermeablepavementassoonaspossibleDisconnectedimperviousareaRainwatercollectioninPatiosTheimperviousareainpatiosisdisconnectedImperviousareaisdisconnectedbygreenbeltRainwatercollectioninPatiosTreesinpatiosPlantingsoilelevationisalittlelowerthanpavementStorminletsettingRainwatercollectioninPatiosSetsomestorminletsinproperplacesofimperviousareaUseporouspipetoConnectstorminletsAllcollectedrainwaterdischargesinto

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