某校区雨水生态收集利用实例

1、Technical measures of rainwater collection and treatment for Tangshan vocation schoolTotal technical designAmbition An optimal water management by BMPs to promote rainwater collection and infiltration Technical measures zone Central axis area(Ceremonial Square、Parking lots、Student area) Patios 、Cent

2、ral canal Central axis areaPatios、Central canal Total technical designTechnical routeBMPs (Rainwater collection and infiltration)Rainfall Vegetated swaleCobble ditchGreen roofEcological ditchPermeable pavement(Roadways、Parking lots)(Patios、Student area)(Patios、Ceremonial Square)(Central Canal)(Parki

3、ng lots)discargediscargeWater body (River、Central Canal、Stream)Technical design for central axis areaAs the Ceremonial Square is a formal area, the total design concept is traditional.Technical measures for the Ceremonial Square includes: Storm inlet Permeable pavementTechnical measure for the Roadw

4、ays is vegetated swale. Technical measure for the Parking lots is green roof.Technical measure for green elements(eg. trees) is steel grid.Design scopeTechnical measures for Ceremonial squareStorm inlet of ceremonial square All storm inlets on the ceremonial square are uniform in colour and style. S

5、torm inlet promotes preliminary rainwater collection.Technical measures for Ceremonial squarePermeable pavement of ceremonial square Permeable pavement is an appropriate choice for promoting rainwater infiltration. We suggest to adopt permeable pavement as much as possible.The specific design of cer

6、emonial square is determined by landscape.Technical measures for roadwaysVegetated swale of roadwaysVegetated swaleTechnical measures for roadsSchematic for vegetated swale The road curb is disconnected. Vegetated swale is lower than the road level. Porous pipe promotes preliminary rainwater infiltr

7、ation.sectionDifferent options for vegetated swaleDifferent options for road curbVSThe road level is lower than the green belt.The road curb is consecutive.The road level is higer than the green belt.The road curb is disconnected.Promoting rainwater collectionNo entrance for rainwaterTechnical measu

8、res for Semi-basement Parking lotsGreen roof for Semi-basement Parking lotsTechnical measures for green elementsSteel grid for trees Steel grid promotes preliminary rainwater collection. The soil and cobble layer in the steel grid promotes rainwater infiltration.The road level is higher than the soi

9、l level Technical measures for the streamRainwater discharge into the stream dispersedly Rainwater discharge into the stream dispersedly Cobble ditch The stream performs as a small storage tank for rainwater. Rainwater collected by the cobble ditch is discharged into the stream dispersedly.Rainwater

10、 collection in patios To combine with the landscape in patios, the following technical measures are adopted:Cobble ditch along roadsPermeable pavementDisconnected impervious areaUse storm inlet to collect rainwaterUse porous pipe to transport rainwaterDesign scopeRainwater collection in Patios Cobbl

11、e ditch along RoadsCobble ditchPorous pipeDrainage grateRoadsCobble ditch sectionPermeable pavementRainwater collection in Patios Propose to use permeable pavement as soon as possible Disconnected impervious areaRainwater collection in Patios The impervious area in patios is disconnected Impervious

12、area is disconnected by greenbeltRainwater collection in Patios Trees in patiosPlanting soil elevation is a little lower than pavementStorm inlet setting Rainwater collection in Patios Set some storm inlets in proper places of impervious area Use porous pipe to Connect storm inletsAll collected rain

13、water discharges into central canalPorous pipe To guarantee the rainwater quality and solve the problem of ice-bound pipe, we adopt the following technical measures:Center canalEcological ditchBuffer along canal(to be determined by landscape designers) Center canalEcological ditch beside the canalCe

14、nter canalIn constructionfinishedPorous rainwater pipe directly connects to the ecological ditch Solve the problem of ice-bound pipestop the pollutant of rainwaterBufferSection of Ecological ditchCenter canalCanal buffersThe specific design of buffers along canal is determined by landscape designRoa

15、dwayRoadway rainwater collectionVegetated swaleLayout of vegetated swale beside roadwaysRoadway rainwater collection uses vegetated swaleSection of vegetated swaleVegetated swaleThe specific form of vegetated is determined by landscape designersParking lotsPorous pavement in parking lotsVegetated swale beside parking lotsParking lotsVegetated swale beside parking lots has two kind of shapesVSTo