Volume 29, Issue 1 (January 2006)

    In Situ Evaluation of Radioisotope Cone Penetrometers in Clays

    (Received 3 April 2002; accepted 7 June 2005)

    CODEN: GTJOAD

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    Abstract

    A comprehensive site investigation was performed at a 12-year-old man-made island in Singapore, which was reclaimed using dredged clay lumps. The objective of the site investigation was to evalute the performance of the radioisotope (RI) cone penetrometers to measure in situ wet density and water content, which are the two important parameters in the characterization of soils formed from clay lumps. The site investigation program included RI cone penetration tests, high quality soil sampling, and laboratory testing. The in situ water content and wet density profiles measured with RI cone penetrometers were compared with data obtained independently from the laboratory tests on undisturbed samples. The comparison shows very good agreement, and 92% of the RI cone measurements were found to be within ±5% of the laboratory measurements.


    Author Information:

    Dasari, GR
    Assistant Professor, Exxonmobil Upstream Research Company, Houston, TX

    Karthikeyan, M
    Research Engineer, University of Strathclyde, Glasgow,

    Tan, T-S
    Associate Professor, National University of Singapore,

    Mimura, M
    Associate Professor, Disaster Prevention Research Institute, Kyoto University,

    Phoon, K-K
    Associate Professor, National University of Singapore,


    Stock #: GTJ11380

    ISSN: 0149-6115

    DOI: 10.1520/GTJ11380

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    Author
    Title In Situ Evaluation of Radioisotope Cone Penetrometers in Clays
    Symposium , 0000-00-00
    Committee D18