You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    Volume 39, Issue 4 (July 2016)

    Correlations for Fully Softened Shear Strength Parameters

    (Received 18 August 2015; accepted 8 February 2016)

    Published Online: 2016

    CODEN: GTJODJ

      Format Pages Price  
    PDF (1.5M) 14 $25   ADD TO CART

    Cite this document

    X Add email address send
    X
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word



    Abstract

    Fully softened shear strength is an important engineering concept for slope stability analyses of cuts in stiff clays and compacted embankments constructed of high plasticity clays. The “softening” concept has been used to explain many first-time failures for which the back-calculated shear strength is below the peak strength measured in the laboratory using undisturbed or freshly compacted samples. A comprehensive laboratory testing program was undertaken to measure the fully softened shear strength of 46 soils using over 300 direct shear tests. These results were used to develop correlations that allow estimation of a continuous and nonlinear fully softened failure envelope using soil index properties. These new correlations were developed to address some of the problems observed with existing correlations for fully softened shear strength parameters. The new correlations are presented along with the statistical parameters needed to assess reliability of the shear strength parameters and to allow use within a probabilistic framework.


    Author Information:

    Castellanos, B. A.
    Virginia Polytechnic Institute and State University, Blacksburg, VA

    Brandon, T. L.
    Virginia Polytechnic Institute and State University, Blacksburg, VA

    VandenBerge, D. R.
    Tennessee Tech, Cookeville, TN


    Stock #: GTJ20150184

    ISSN:0149-6115

    DOI: 10.1520/GTJ20150184

    Author
    Title Correlations for Fully Softened Shear Strength Parameters
    Symposium ,
    Committee D18