Young’s Modulus of Coarse Granular Materials via Cyclic Large Triaxial Tests: Effect of Parallel Grading and Loading Pattern

    Volume 36, Issue 3 (May 2013)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Published Online: 21 March 2013

    Page Count: 13


    Lee, Sung-Jin
    Senior Researcher, Korea Railroad Research Institute, Uiwang, Gyeonggi-do

    Choo, Yun Wook
    Research Professor, KAIST, Daejeon,

    Lee, Jin-Wook
    Principal Researcher, Korea Railroad Research Institute, Uiwang, Gyeonggi-do

    Sagong, Myung
    Principal Researcher, Korea Railroad Research Institute, Uiwang, Gyeonggi-do

    (Received 3 May 2012; accepted 5 February 2013)

    Abstract

    In this study, a new large-scale triaxial testing apparatus was constructed and calibrated. To verify the new testing system, synthetic specimens were prepared and tested by three different testing methods: tests using the newly constructed large-scale triaxial testing apparatus, resonant column/torsional shear tests, and free–free resonant column tests. Young’s moduli of the synthetic specimens measured by the three methods were compared, providing comparable results. In addition, cyclic triaxial tests were performed under various experimental conditions on coarse grain materials. Two series of parallel graded samples were prepared by mixing crushed rock. The samples were tested using the new triaxial testing apparatus under various testing conditions. The influence of grain size, loading pattern, loading frequency, and fine contents were analyzed and discussed.


    Paper ID: GTJ20120064

    DOI: 10.1520/GTJ20120064

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    Author
    Title Young’s Modulus of Coarse Granular Materials via Cyclic Large Triaxial Tests: Effect of Parallel Grading and Loading Pattern
    Symposium , 0000-00-00
    Committee D18