Hydrologic Comparison of Four Types of Permeable Pavement and Standard Asphalt in Eastern North Carolina.pdf

Hydrologic Comparison of Four Types of Permeable Pavement and Standard Asphalt in Eastern North Carolina.pdf

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時(shí)間：2019-03-11

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1、HydrologicComparisonofFourTypesofPermeablePavementandStandardAsphaltinEasternNorthCarolina123KellyA.Collins,S.M.ASCE;WilliamF.Hunt,P.E.,M.ASCE;andJonM.HathawayAbstract:ApermeablepavementparkinglotineasternNorthCarolinaconsistingoffourtypesofpermeablepavementandstanda

2、rdasphaltwasmonitoredfromJune2006toJuly2007forhydrologicdifferencesinpavementsurfacerunoffvolumes,totalout?owvolumes,peak?owrates,andtimetopeak.ThefourpermeablesectionswereperviousconcretePC,twotypesofpermeableinterlockingconcretepavementPICPwithsmall-sizedaggreg

3、ateinthejointsandhaving12.9%PICP1and8.5%PICP2opensurfacearea,andconcretegridpaversCGPTlledwithsand.Thesitewaslocatedinpoorlydrainedsoils,andallpermeablesectionswereunderlainbyacrushedstonebaselayerwithaperforatedunderdrain.AllpermeablepavementssigniTcantlyreduc

4、edsurfacerunoffvolumesandpeak?owratesfromthoseofasphaltp0.01.Ofthepermeablepavements,CGPgeneratedthegreatestsurfacerunoffvolumesp0.01.ThePICP1andCGPcellsgeneratedsigniTcantlylowertotalout?owvolumesthanallothersectionsevaluatedp0.01,andhadthelowestpeak?owsand

5、thelongesttimetopeak.TheresponseofthePICP1cellwaslikelyduetoanincreasedbasestoragevolumeresultingfromanelevatedpipeunderdrainwhereastheCGPcellresponsewasattributedtowaterretentioninthesandTlllayer.Overall,differentpermeablepavementsectionsperformedsimilarly,butweresu

6、bstantiallydifferentfromasphalt.SubtledifferencesintheperformanceofCGPwereprimarilyduetothecharacteristicsofthesandTlledmediacomparedtosmallaggregatetypicallyusedinPCandPICPjointsandbedding.DOI:10.1061/ASCE1084-0699200813:121146CEDatabasesubjectheadings:Stormwa

7、termanagement;Runoff;Hydrology;Pavements;Peak?ow;BestManagementPractice;NorthCarolina;Parkingfacilities.IntroductionfoundtobelargelydependentonthepercentofsurfaceopeningsandtheparticlesizedistributionoftheaggregatejointTllingandPermeablepavementsareregardedasaneffect

8、ivetoolinmanag-beddingmaterialAndersenetal.1999;JamesandShahin1998.ingstormwater.Whencomparedtotraditional,imperviousas-Alaborato

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