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    Field Tests on Deformation Property of Self-Weight Collapsible Loess with Large Thickness

    Source: International Journal of Geomechanics:;2014:;Volume ( 014 ):;issue: 003
    Author:
    Xue-lang
    ,
    Wang
    ,
    Yan-peng
    ,
    Zhu
    ,
    Xue-feng
    ,
    Huang
    DOI: 10.1061/(ASCE)GM.1943-5622.0000320
    Publisher: American Society of Civil Engineers
    Abstract: To study the deformation property of large-thickness self-weight collapsible loess and to understand the moisture migration law and matrix suction characteristics, a 40-m-diameter soaking test was conducted in the field with self-weight collapsible loess at a thickness of 36.5 m. The results showed that (1) the field collapse deformation law of the large-thickness self-weight collapsible loess varied in two periods, namely, the soaking period and the water cutoff period; (2) during the soaking test, the distribution of crack patterns appeared from local to overall, from near to far, and from dense to sparse, then gradually extended; (3) the volumetric moisture content changed in different soil locations; (4) suction developed steadily before soaking, whereas with a large amount of water, suction dropped steeply within a short time; and (5) the water content of soil above 20 to 25 m increased rapidly and soon reached saturation, whereas the water content of soil below that depth increased slowly and reached saturation with difficulty. The test results may be useful for similar projects in the area of self-weight collapsible loess with large thickness, and to help revise Chinese codes for building construction in collapsible loess regions.
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      Field Tests on Deformation Property of Self-Weight Collapsible Loess with Large Thickness

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    contributor authorXue-lang
    contributor authorWang
    contributor authorYan-peng
    contributor authorZhu
    contributor authorXue-feng
    contributor authorHuang
    date accessioned2017-05-08T22:21:26Z
    date available2017-05-08T22:21:26Z
    date copyrightJune 2014
    date issued2014
    identifier other43036385.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/78574
    description abstractTo study the deformation property of large-thickness self-weight collapsible loess and to understand the moisture migration law and matrix suction characteristics, a 40-m-diameter soaking test was conducted in the field with self-weight collapsible loess at a thickness of 36.5 m. The results showed that (1) the field collapse deformation law of the large-thickness self-weight collapsible loess varied in two periods, namely, the soaking period and the water cutoff period; (2) during the soaking test, the distribution of crack patterns appeared from local to overall, from near to far, and from dense to sparse, then gradually extended; (3) the volumetric moisture content changed in different soil locations; (4) suction developed steadily before soaking, whereas with a large amount of water, suction dropped steeply within a short time; and (5) the water content of soil above 20 to 25 m increased rapidly and soon reached saturation, whereas the water content of soil below that depth increased slowly and reached saturation with difficulty. The test results may be useful for similar projects in the area of self-weight collapsible loess with large thickness, and to help revise Chinese codes for building construction in collapsible loess regions.
    publisherAmerican Society of Civil Engineers
    titleField Tests on Deformation Property of Self-Weight Collapsible Loess with Large Thickness
    typeJournal Paper
    journal volume14
    journal issue3
    journal titleInternational Journal of Geomechanics
    identifier doi10.1061/(ASCE)GM.1943-5622.0000320
    treeInternational Journal of Geomechanics:;2014:;Volume ( 014 ):;issue: 003
    contenttypeFulltext
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