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    Influence of Cyclic Stress Pulse Shapes on Filtration Behavior of Railway Subballast

    Source: Journal of Geotechnical and Geoenvironmental Engineering:;2012:;Volume ( 138 ):;issue: 002
    Author:
    Mau Chung Ip
    ,
    Asadul Haque
    ,
    Abdelmalek Bouazza
    DOI: 10.1061/(ASCE)GT.1943-5606.0000557
    Publisher: American Society of Civil Engineers
    Abstract: Filtration behavior of subballast materials subjected to different cyclic stress pulse shapes at frequencies of 5 Hz and 10 Hz was investigated in the laboratory. Clayey silt was used as a base soil while graded crushed basalt was used as a filter. Rectangular, sinusoidal, and triangular cyclic stress pulse shapes having a stress range of 70–140 kPa were investigated for a piping ratio of 9. Turbidity, permeability, and change of pore water pressure within base soil were recorded over time as the number of stress pulse cycles increased. Results show that triangular and sinusoidal cyclic stress pulse shapes have a similar effect on the filtration behavior while the rectangular cyclic pulse shape had a slightly higher effect than triangular and sinusoidal stress pulse shapes. Based on this study, a piping ratio of 9 was found to be satisfactory for all cyclic stress pulse shapes at 5 Hz.
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      Influence of Cyclic Stress Pulse Shapes on Filtration Behavior of Railway Subballast

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/62346
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    • Journal of Geotechnical and Geoenvironmental Engineering

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    contributor authorMau Chung Ip
    contributor authorAsadul Haque
    contributor authorAbdelmalek Bouazza
    date accessioned2017-05-08T21:47:19Z
    date available2017-05-08T21:47:19Z
    date copyrightFebruary 2012
    date issued2012
    identifier other%28asce%29gt%2E1943-5606%2E0000572.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/62346
    description abstractFiltration behavior of subballast materials subjected to different cyclic stress pulse shapes at frequencies of 5 Hz and 10 Hz was investigated in the laboratory. Clayey silt was used as a base soil while graded crushed basalt was used as a filter. Rectangular, sinusoidal, and triangular cyclic stress pulse shapes having a stress range of 70–140 kPa were investigated for a piping ratio of 9. Turbidity, permeability, and change of pore water pressure within base soil were recorded over time as the number of stress pulse cycles increased. Results show that triangular and sinusoidal cyclic stress pulse shapes have a similar effect on the filtration behavior while the rectangular cyclic pulse shape had a slightly higher effect than triangular and sinusoidal stress pulse shapes. Based on this study, a piping ratio of 9 was found to be satisfactory for all cyclic stress pulse shapes at 5 Hz.
    publisherAmerican Society of Civil Engineers
    titleInfluence of Cyclic Stress Pulse Shapes on Filtration Behavior of Railway Subballast
    typeJournal Paper
    journal volume138
    journal issue2
    journal titleJournal of Geotechnical and Geoenvironmental Engineering
    identifier doi10.1061/(ASCE)GT.1943-5606.0000557
    treeJournal of Geotechnical and Geoenvironmental Engineering:;2012:;Volume ( 138 ):;issue: 002
    contenttypeFulltext
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