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    Design and Performance Simulation of Road Bioretention Media for Sponge Cities

    Source: Journal of Performance of Constructed Facilities:;2018:;Volume ( 032 ):;issue: 005
    Author:
    Zhang Lei;Lu Qing;Ding Yongfu;Peng Pan;Yao Yu
    DOI: 10.1061/(ASCE)CF.1943-5509.0001209
    Publisher: American Society of Civil Engineers
    Abstract: Road bioretention is one of the promising low impact development (LID) best management practices (BMPs) for the construction of sponge cities. Design of the media used in the soil layer of a bioretention facility is critical to its performance regarding infiltration, filtration, and storage of a high volume of runoff from impervious areas. In this study, a coarse aggregate void filling (CAVF) method was adopted for the design of bioretention soil media. The key hydrological parameter of the bioretention media, the average matrix suction at its wetting front, was estimated through finite-element simulation of the rainfall infiltration process. Using the obtained parameter, a bioretention structure was designed, then modeled in the Storm Water Management Model (SWMM) software to analyze its potential hydrologic benefits in terms of reduction in both peak flow and total volume of surface runoff into storm drains in a rainfall event. It was found that the permeability of bioretention soil media is the key factor that affects outflow reduction ratio, peak flow reduction rate, and peak time of the system. The bioretention media composition design method adopted in this study seems promising for use in the material and structural design of road bioretention facilities for sponge cities.
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      Design and Performance Simulation of Road Bioretention Media for Sponge Cities

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4248528
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    contributor authorZhang Lei;Lu Qing;Ding Yongfu;Peng Pan;Yao Yu
    date accessioned2019-02-26T07:39:19Z
    date available2019-02-26T07:39:19Z
    date issued2018
    identifier other%28ASCE%29CF.1943-5509.0001209.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4248528
    description abstractRoad bioretention is one of the promising low impact development (LID) best management practices (BMPs) for the construction of sponge cities. Design of the media used in the soil layer of a bioretention facility is critical to its performance regarding infiltration, filtration, and storage of a high volume of runoff from impervious areas. In this study, a coarse aggregate void filling (CAVF) method was adopted for the design of bioretention soil media. The key hydrological parameter of the bioretention media, the average matrix suction at its wetting front, was estimated through finite-element simulation of the rainfall infiltration process. Using the obtained parameter, a bioretention structure was designed, then modeled in the Storm Water Management Model (SWMM) software to analyze its potential hydrologic benefits in terms of reduction in both peak flow and total volume of surface runoff into storm drains in a rainfall event. It was found that the permeability of bioretention soil media is the key factor that affects outflow reduction ratio, peak flow reduction rate, and peak time of the system. The bioretention media composition design method adopted in this study seems promising for use in the material and structural design of road bioretention facilities for sponge cities.
    publisherAmerican Society of Civil Engineers
    titleDesign and Performance Simulation of Road Bioretention Media for Sponge Cities
    typeJournal Paper
    journal volume32
    journal issue5
    journal titleJournal of Performance of Constructed Facilities
    identifier doi10.1061/(ASCE)CF.1943-5509.0001209
    page4018061
    treeJournal of Performance of Constructed Facilities:;2018:;Volume ( 032 ):;issue: 005
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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