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    Volume 40, Issue 5 (September 2017)

    A New Testing Device for Characterizing Anisotropic Response of Soils during Compaction Processes

    (Received 4 June 2016; accepted 17 February 2017)

    Published Online: 2017

    CODEN: GTJODJ

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    Abstract

    Soil behavior during compaction is not completely understood due to the difficulty of observing principal state variables during this process. Determination of stress paths and failure envelopes occurring during compaction is challenging due to limitations during determination of principal stresses. The development of a new one-dimensional compaction device designed to allow direct measurement of axial and radial stresses provides an innovative testing procedure that allows analysis of the evolution of state variables of soils subjected to compaction. This methodology is presented through the analysis of fine-grained soils subjected to cyclic compaction together with the analysis of the moisture effect over the stress ratio. As variations with loading cycles are observed, the results allow inference of ratios between horizontal and vertical stresses (K) as non-unique values. Yield stresses and failure envelopes obtained from compaction stress paths are analyzed considering the effect of unsaturated undrained conditions.

    Author Information:

    Mendoza, Cristhian
    Department of Civil and Environmental Engineering, Universidad de Los Andes, Bogotá, Colombia

    Ovalle, William
    Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC

    Caicedo, Bernardo
    Department of Civil and Environmental Engineering, Universidad de Los Andes, Bogotá, Colombia

    Sasanakul, Inthuorn
    Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC


    Stock #: GTJ20160119

    ISSN:0149-6115

    DOI: 10.1520/GTJ20160119

    Author
    Title A New Testing Device for Characterizing Anisotropic Response of Soils during Compaction Processes
    Symposium ,
    Committee D18