Volume 33, Issue 2 (March 2010)

    Recommended Practice for Full-Flow Penetrometer Testing and Analysis

    (Received 14 April 2009; accepted 24 November 2009)

    Published Online: 2010

    CODEN: GTJOAD

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    Abstract

    The increasing use of full-flow penetrometers for estimating the undrained and remolded shear strength as well as soil sensitivity of soft sediments by both industry and researchers has resulted in a rather rapid maturation of this new in situ test method over the past decade. Experimental, analytical, and numerical analysis results for full-flow penetrometers are now sufficient to provide recommended practices regarding equipment design, testing procedures, and data analysis. Equipment design must consider both physical attributes of the penetrometers and electronic design and data acquisition. The testing procedures presented are modified from standard test methods for the piezocone with additions for evaluation of remolded strength by cycling and rate effects through variable penetration rate testing. Data reduction includes methods for normalizing the penetration resistance data for comparison between test sites and depths and methods for estimating undrained and remolded shear strength as well as soil sensitivity. All recommendations are summarized in a guidance table.


    Author Information:

    DeJong, Jason
    Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA

    Yafrate, Nicholas
    Senior Staff Engineer, Geosyntec Consultants, Acton, MA

    DeGroot, Don
    Professor, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts—Amherst, Amherst, MA

    Low, Han Eng
    Dept. of Civil and Resource Engineering, Univ. of Western Australia, Crawley, Perth,

    Randolph, Mark
    Professor, Dept. of Civil and Environmental Engineering, Univ. of Western Australia, Crawley, Perth,


    Stock #: GTJ102468

    ISSN: 0149-6115

    DOI: 10.1520/GTJ102468

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    Author
    Title Recommended Practice for Full-Flow Penetrometer Testing and Analysis
    Symposium , 0000-00-00
    Committee D18