Sensing and Imaging the State of Effective Stress in a 1-g Shallow Foundation Model

    Volume 35, Issue 5 (September 2012)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Published Online: 1 August 2012

    Page Count: 12


    Kim, Kyu-Sun
    Research Engineer, Construction Technology Research Institute, Samsung C&T Corporation, Seoul,

    Tanner, William M.
    Project Engineer, Geosyntec Consultants, Kennesaw, GA

    Fratta, Dante
    Associate Professor, Geological Engineering Program. Univ. of Wisconsin-Madison., Madison, WI

    (Received 31 December 2010; accepted 10 April 2012)

    Abstract

    This paper describes an experimental study for the imaging of effective stresses under a shallow foundation system. S-wave data were collected during several loading stages of the shallow foundation model. S-wave crosshole data were inverted to obtain effective stress distribution images by solving the tomographic imaging problem. To optimize the travel-time tomographic imaging solution of the stress-heterogeneous medium, S-wave data quality, sensor array design, ray tracing algorithm selection, and inversion parameter choice were carefully considered. The experimental results show the practical engineering potential of tomographic imaging techniques for the monitoring of in situ effective stress and the evaluation of design models and effective stress-driven processes.


    Paper ID: GTJ103734

    DOI: 10.1520/GTJ103734

    ASTM International is a member of CrossRef.

    Author
    Title Sensing and Imaging the State of Effective Stress in a 1-g Shallow Foundation Model
    Symposium , 0000-00-00
    Committee D18