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    Volume 28, Issue 6 (November 2005)

    Efficiency of Seepage Consolidation for Preparation of Clay Substrate for Centrifuge Testing

    (Received 22 December 2003; accepted 27 April 2005)

    Published Online: 2005

    CODEN: GTJOAD

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    Abstract

    Seepage consolidation under normal gravity conditions can be used to prepare clay soil substrates for subsequent testing in a geotechnical centrifuge. Currently available information provides no information regarding the general efficiency of this method, which would be expected to vary widely depending on centrifuge, test specimen, and operating conditions. A numerical investigation is presented of the efficiency of the two-stage seepage/centrifuge consolidation method for the preparation of normally consolidated clay substrates. Large strain consolidation simulations and experimental data for centrifuge and seepage/centrifuge consolidation tests conducted on reconstituted Singapore marine clay are in excellent agreement. A parametric study illustrates the effects of initial specimen void ratio, initial specimen height, surcharge stress, swelling time, and acceleration factor on the efficiency of the two-stage substrate preparation method. Efficiency of the method for Singapore marine clay ranged from 55 to essentially 100% for the simulations conducted.


    Author Information:

    Lee, J
    Graduate Research Assistant, Ohio State University, Columbus, OH

    Fox, PJ
    Professor, Ohio State University, Columbus, OH


    Stock #: GTJ12516

    ISSN: 0149-6115

    DOI: 10.1520/GTJ12516

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    Author
    Title Efficiency of Seepage Consolidation for Preparation of Clay Substrate for Centrifuge Testing
    Symposium , 0000-00-00
    Committee D18