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    New Orleans Levee System Performance during Hurricane Katrina: 17th Street Canal and Orleans Canal North

    Source: Journal of Geotechnical and Geoenvironmental Engineering:;2008:;Volume ( 134 ):;issue: 005
    Author:
    Inthuorn Sasanakul
    ,
    Wipawi Vanadit-Ellis
    ,
    Michael Sharp
    ,
    Tarek Abdoun
    ,
    Javier Ubilla
    ,
    Scott Steedman
    ,
    Kevin Stone
    DOI: 10.1061/(ASCE)1090-0241(2008)134:5(657)
    Publisher: American Society of Civil Engineers
    Abstract: Centrifuge modeling of the 17th Street Canal and Orleans Canal North levees was performed in this study. During hurricane Katrina the levees on the 17th Street Canal failed, leading to breaches in the outfall canal in the city. Two mechanisms were observed in the centrifuge modeling that could cause a breach. First, a water-filled crack formed in front of the floodwall as the water in the canal rose above the top of the levee. The levees on the 17th Street Canal, which were supported on clay foundations, failed when this cracking led to a translational (sliding) failure in the clay layer commencing at the toe of the floodwall. The levees at Orleans Canal North, where failure did not occur, were also modeled to demonstrate that the model tests could successfully simulate failure and nonfailure conditions. The centrifuge model tests identified the importance of the crack formation in relation to the stability of the floodwall. These tests also confirmed that levee geometry, floodwall depth of penetration, and the underlying soil profile were all critical to the performance of the system under flood loading.
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      New Orleans Levee System Performance during Hurricane Katrina: 17th Street Canal and Orleans Canal North

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    http://yetl.yabesh.ir/yetl1/handle/yetl/53341
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    contributor authorInthuorn Sasanakul
    contributor authorWipawi Vanadit-Ellis
    contributor authorMichael Sharp
    contributor authorTarek Abdoun
    contributor authorJavier Ubilla
    contributor authorScott Steedman
    contributor authorKevin Stone
    date accessioned2017-05-08T21:29:13Z
    date available2017-05-08T21:29:13Z
    date copyrightMay 2008
    date issued2008
    identifier other%28asce%291090-0241%282008%29134%3A5%28657%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/53341
    description abstractCentrifuge modeling of the 17th Street Canal and Orleans Canal North levees was performed in this study. During hurricane Katrina the levees on the 17th Street Canal failed, leading to breaches in the outfall canal in the city. Two mechanisms were observed in the centrifuge modeling that could cause a breach. First, a water-filled crack formed in front of the floodwall as the water in the canal rose above the top of the levee. The levees on the 17th Street Canal, which were supported on clay foundations, failed when this cracking led to a translational (sliding) failure in the clay layer commencing at the toe of the floodwall. The levees at Orleans Canal North, where failure did not occur, were also modeled to demonstrate that the model tests could successfully simulate failure and nonfailure conditions. The centrifuge model tests identified the importance of the crack formation in relation to the stability of the floodwall. These tests also confirmed that levee geometry, floodwall depth of penetration, and the underlying soil profile were all critical to the performance of the system under flood loading.
    publisherAmerican Society of Civil Engineers
    titleNew Orleans Levee System Performance during Hurricane Katrina: 17th Street Canal and Orleans Canal North
    typeJournal Paper
    journal volume134
    journal issue5
    journal titleJournal of Geotechnical and Geoenvironmental Engineering
    identifier doi10.1061/(ASCE)1090-0241(2008)134:5(657)
    treeJournal of Geotechnical and Geoenvironmental Engineering:;2008:;Volume ( 134 ):;issue: 005
    contenttypeFulltext
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