Characterization of three-dimensional random crack network in soil using CT test

Lisa Jinhui Li, L.M. Zhang, Y. Zhao

    Research output: Chapter in Book/Conference paperConference paper

    Abstract

    Cracks in soils are three-dimensional (3D) and provide important preferential pathways for rainfall infiltration. The geometrical properties of 3D cracks are crucial parameters for analysis of seepage in discontinuous soils or rocks. However 3D crack planes in soils are still largely unknown because the cracks in soils are prone to disturbance and sensitive to moisture content. This paper presents a method to characterize 3D crack planes in soils by employing a nondestructive Computer Tomography (CT) test. The traces of cracks are first obtained from sections along three directions in the CT test. Then three criteria are proposed to determine a crack plane based on these crack traces. Finally the random crack network in the soil is established by assembling the planes. The probability distribution and statistical parameters can be obtained based on the obtained crack planes. © 2014 Taylor & Francis Group, London.
    Original languageEnglish
    Title of host publicationProceedings of the 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013
    Place of PublicationHong Kong
    PublisherScientific.net
    Pages133-138
    Volume1
    ISBN (Print)9781138001633
    Publication statusPublished - 2014
    Event4th International Symposium on Geotechnical Safety and Risk - , Hong Kong
    Duration: 4 Dec 20136 Dec 2013

    Conference

    Conference4th International Symposium on Geotechnical Safety and Risk
    CountryHong Kong
    Period4/12/136/12/13

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  • Cite this

    Li, L. J., Zhang, L. M., & Zhao, Y. (2014). Characterization of three-dimensional random crack network in soil using CT test. In Proceedings of the 4th International Symposium on Geotechnical Safety and Risk, ISGSR 2013 (Vol. 1, pp. 133-138). Scientific.net.