Volume 19, Issue 4 (July 1991)

    Laboratory Testing of River Gravel Used in Arrester Beds

    (Received 7 May 1990; accepted 31 December 1990)

    CODEN: JTEOAD

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    Abstract

    The objective of this study was to investigate the engineering properties of a river gravel. The engineering properties studied included shear strength, volume change, failure strain, and modulus of elasticity. The triaxial compressive strength of the river gravel was used in a developed model to obtain the stopping distance of a runaway truck in an arrester bed.

    Static and dynamic triaxial compression tests were performed using a specially constructed triaxial cell on specimens 22.9 cm (9 in.) in diameter and 48.3 cm (19 in.) in height. Specially designed damping equipment was employed to perform the dynamic testing. The test specimens were subjected to different confining pressures.

    The results of the study not only provide data on strength, relative volume change, failure strain, and modulus of elasticity but also on the relationship between these properties and influencing factors such as relative density, confining pressure, and loading rate. The material parameters of the river gravel were applied successfully in a mathematical model developed to predict the stopping distance of a run-away truck in an arrester bed.


    Author Information:

    Al-Qadi, IL
    Assistant Professor, Virginia Polytechnic Institute and State University, Blacksburg, VA

    Rivera-Ortiz, LA
    Assistant Professor, University of Puerto Rico, Mayaguez Campus, Mayaguez, PR


    Stock #: JTE12571J

    ISSN: 0090-3973

    DOI: 10.1520/JTE12571J

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    Author
    Title Laboratory Testing of River Gravel Used in Arrester Beds
    Symposium , 0000-00-00
    Committee D18