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    Erosion Study of New Orleans Levee Materials Subjected to Plunging Water

    Source: Journal of Geotechnical and Geoenvironmental Engineering:;2011:;Volume ( 137 ):;issue: 004
    Author:
    Wongil Jang
    ,
    Chung R. Song
    ,
    Jinwon Kim
    ,
    Alexander H.-D. Cheng
    ,
    Ahmed Al-Ostaz
    DOI: 10.1061/(ASCE)GT.1943-5606.0000439
    Publisher: American Society of Civil Engineers
    Abstract: During Hurricane Katrina, overtopping water caused erosion and subsequent failure of several sections of I-type flood walls in New Orleans. Erosion stemmed from the kinetic energy of water falling from the top of the flood wall, unlike the typical surface erosion caused by shear flow. This study evaluated the effects of important parameters of levee soils—fines content, degree of compaction (DOC), clay mineralogy, and water content in relation to the erosion behavior of New Orleans levees subjected to the plunging water. In general, test results showed that a higher fines content contributed to greater erosion resistance. The trend became unclear when fines content exceeded 20–25%. A higher degree of compaction did not necessarily contribute to greater erosion resistance. Underwater soaked soils showed much less erosion resistance than nonsoaked soils. Soils containing expansive clay minerals showed less erosion resistance than soils containing nonexpansive clay minerals.
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      Erosion Study of New Orleans Levee Materials Subjected to Plunging Water

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/62220
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    • Journal of Geotechnical and Geoenvironmental Engineering

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    contributor authorWongil Jang
    contributor authorChung R. Song
    contributor authorJinwon Kim
    contributor authorAlexander H.-D. Cheng
    contributor authorAhmed Al-Ostaz
    date accessioned2017-05-08T21:47:05Z
    date available2017-05-08T21:47:05Z
    date copyrightApril 2011
    date issued2011
    identifier other%28asce%29gt%2E1943-5606%2E0000455.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/62220
    description abstractDuring Hurricane Katrina, overtopping water caused erosion and subsequent failure of several sections of I-type flood walls in New Orleans. Erosion stemmed from the kinetic energy of water falling from the top of the flood wall, unlike the typical surface erosion caused by shear flow. This study evaluated the effects of important parameters of levee soils—fines content, degree of compaction (DOC), clay mineralogy, and water content in relation to the erosion behavior of New Orleans levees subjected to the plunging water. In general, test results showed that a higher fines content contributed to greater erosion resistance. The trend became unclear when fines content exceeded 20–25%. A higher degree of compaction did not necessarily contribute to greater erosion resistance. Underwater soaked soils showed much less erosion resistance than nonsoaked soils. Soils containing expansive clay minerals showed less erosion resistance than soils containing nonexpansive clay minerals.
    publisherAmerican Society of Civil Engineers
    titleErosion Study of New Orleans Levee Materials Subjected to Plunging Water
    typeJournal Paper
    journal volume137
    journal issue4
    journal titleJournal of Geotechnical and Geoenvironmental Engineering
    identifier doi10.1061/(ASCE)GT.1943-5606.0000439
    treeJournal of Geotechnical and Geoenvironmental Engineering:;2011:;Volume ( 137 ):;issue: 004
    contenttypeFulltext
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