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    Volume 43, Issue 2 (March 2015)

    Special Issue Paper

    Experimental Evaluation of Cratering and Ground Vibration in Clay Soils Subjected to Explosive Airblast Loading

    (Received 17 November 2013; accepted 22 December 2014)

    Published Online: 2015

    CODEN: JTEVAB

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    Abstract

    This study focused on the ground response of clay soils in confined conditions subjected to explosive airblast loading through small-scale field experiments. Laboratory testing was also performed to characterize the soils used during field testing and obtain material properties for future work. A total of 33 suspended explosive blasts were conducted with explosive masses ranging from 0.9 to 100.9 g and two heights of suspension of 2.5–7.6 cm above the clay surface. The field instrumentation consisted of subsurface triaxial geophones and surface airblast sensors. Results of the study included surface crater geometry measurements, ground vibration data, and air overpressure data. Crater diameters ranged from 3.8 to 22.9 cm, while crater depth ranged from 0.8 to 8.4 cm. Crater volumes ranged from 32.1 to 1720.6 cm3. Peak particle velocity (PPV) decreased with depth and ranged from 1.0 to 40.2 cm/s. The results of the experiment provided a data set that could be used to predict the effects of airblast loads on clay soils.


    Author Information:

    Busch, Courtney L.
    Ph.D. Candidate, Department of Civil Engineering, Univ. of New Mexico, NM

    Aimone-Martin, Catherine T.
    President, Aimone-Martin Associates, LLC, Socorro,

    Tarefder, Rafiqul A.
    Associate Professor, Department of Civil Engineering, Univ. of New Mexico, NM


    Stock #: JTE20130296

    ISSN:0090-3973

    DOI: 10.1520/JTE20130296

    Author
    Title Experimental Evaluation of Cratering and Ground Vibration in Clay Soils Subjected to Explosive Airblast Loading
    Symposium ,
    Committee D18