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    Volume 24, Issue 4 (December 2001)

    Explosive Induced Pore Pressure in a Sandfill Dam

    (Received 13 December 1998; accepted 27 April 2001)

    CODEN: GTJOAD

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    Abstract

    This paper reports on the potential performance of earthfill and tailings dams, and other saturated earthen structures, subjected to blast vibrations. Relationships between explosive-induced residual pore pressure increase and crest settlement versus peak particle velocity are presented. Eight explosive tests, conducted on a 2.25-m-high dam constructed of loose dilative sand, showed that significant increases in residual pore pressure (PPR > 0.1) occurred when peak particle velocity exceeded 0.015 m/s at shallow depths to 0.035 m/s at greater depths. Limited crest settlement occurred when the peak particle velocity exceeded 0.025 m/s. Results of this research, previous research, and the field behavior of full-scale earthfill and tailings dams indicate that peak particle velocity below 0.025 m/s and 0.10 m/s are reasonable thresholds to limit pore pressure buildup in full-size earthfill and tailings dams sensitive and not sensitive to vibrations, respectively.


    Author Information:

    Charlie, WA
    Professor, Colorado State University, Fort Collins, CO

    Lewis, WA
    Civil engineer, California Department of Transportation, Sacramento, CA

    Doehring, DO
    Emeritus professor, Colorado State University, Fort Collins, CO


    Stock #: GTJ11136J

    ISSN: 0149-6115

    DOI: 10.1520/GTJ11136J

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    Author
    Title Explosive Induced Pore Pressure in a Sandfill Dam
    Symposium , 0000-00-00
    Committee D18