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    Application of PIV Technique in Model Test of Frost Heave of Unsaturated Soil

    Source: Journal of Cold Regions Engineering:;2020:;Volume ( 034 ):;issue: 003
    Author:
    Meng Wang
    ,
    Xu Li
    ,
    Zhenya Liu
    ,
    Jiankun Liu
    ,
    Dan Chang
    DOI: 10.1061/(ASCE)CR.1943-5495.0000216
    Publisher: ASCE
    Abstract: Frost heave of soil is a highly nonuniform problem, in which the local deformation is much more severe and meaningful compared with the overall deformation. When soil is upon freezing, a water–ice phase change occurs and induces the migration of pore water. Subsequently, the distribution of temperature, water content, ice content, and fabric is highly nonuniform in frozen soil. The local frost deformation of soil mainly depends on the local temperature, soil water content, and ice content. In this study, the particle image velocimetry (PIV) method is introduced into the soil column test to monitor the local frost deformation. Several tracer particles are tested to overcome the difficulty that the deformation field is not clear in clay soil. The results demonstrate that the mixed sand is a suitable choice of tracer particles and can lead to clear contours of vertical displacement and strain. Such local deformation information is valuable and can be synthetically analyzed with the local temperature, soil water content, and ice content. The PIV technique is considered to be a good choice for monitoring the local frost deformation field in frozen soil.
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      Application of PIV Technique in Model Test of Frost Heave of Unsaturated Soil

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4268403
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    • Journal of Cold Regions Engineering

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    contributor authorMeng Wang
    contributor authorXu Li
    contributor authorZhenya Liu
    contributor authorJiankun Liu
    contributor authorDan Chang
    date accessioned2022-01-30T21:32:54Z
    date available2022-01-30T21:32:54Z
    date issued9/1/2020 12:00:00 AM
    identifier other%28ASCE%29CR.1943-5495.0000216.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4268403
    description abstractFrost heave of soil is a highly nonuniform problem, in which the local deformation is much more severe and meaningful compared with the overall deformation. When soil is upon freezing, a water–ice phase change occurs and induces the migration of pore water. Subsequently, the distribution of temperature, water content, ice content, and fabric is highly nonuniform in frozen soil. The local frost deformation of soil mainly depends on the local temperature, soil water content, and ice content. In this study, the particle image velocimetry (PIV) method is introduced into the soil column test to monitor the local frost deformation. Several tracer particles are tested to overcome the difficulty that the deformation field is not clear in clay soil. The results demonstrate that the mixed sand is a suitable choice of tracer particles and can lead to clear contours of vertical displacement and strain. Such local deformation information is valuable and can be synthetically analyzed with the local temperature, soil water content, and ice content. The PIV technique is considered to be a good choice for monitoring the local frost deformation field in frozen soil.
    publisherASCE
    titleApplication of PIV Technique in Model Test of Frost Heave of Unsaturated Soil
    typeJournal Paper
    journal volume34
    journal issue3
    journal titleJournal of Cold Regions Engineering
    identifier doi10.1061/(ASCE)CR.1943-5495.0000216
    page15
    treeJournal of Cold Regions Engineering:;2020:;Volume ( 034 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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