Physical Modeling of Landslide Stabilization Methods in an Overconsolidated Clay

    Volume 31, Issue 2 (March 2008)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Published Online: 29 October 2007

    Page Count: 17


    Fioravante, V.
    Professor of Soil Mechanics and Foundation Engineering, University of Ferrara, Ferrara

    (Received 6 October 2005; accepted 24 August 2007)

    Abstract

    This paper describes some of the main results of physical modeling tests performed on retaining structures. The modeling arose from the design of stabilizing structures for a landslide with a natural slope angle of 10°, a thickness of about 15 m, a 90 m wide and 600 m long extension, which occurred in overconsolidated clay. The medium plasticity inorganic clay soil was characterized by a shear resistance peak angle, φP=24.7° and a residual angle φR=10.5°. Two types of stabilizing structure models fixed into the subsoil, were adopted: the first, consisted of a diaphragm wall and the second of three aligned piers; both models were instrumented with strain gages. The sliding block was mechanically pushed against the structure up to failure, in order to assess the behavior of the structures in displacing ground. This paper presents details of the performed tests, the procedures that were adopted and an analysis of the gathered results according to “empirical-based” and “pressure-based” design methods.


    Paper ID: GTJ100001

    DOI: 10.1520/GTJ100001

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    Author
    Title Physical Modeling of Landslide Stabilization Methods in an Overconsolidated Clay
    Symposium , 0000-00-00
    Committee D18