Volume 25, Issue 3 (September 2002)

    Development of a Multiple-Purpose Borehole Testing Device for Soft Rock

    (Received 29 November 2000; accepted 28 September 2001)

    CODEN: GTJOAD

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    Abstract

    The authors developed a versatile in situ testing device specifically for soft rock. The main purpose of this device was to provide design parameters for shallow or deep foundations in soft rock. The new device, referred to as the Borehole Testing Device (BTD) consisted of four radial curved platens at the top and a circular steel plate at the bottom. The BTD was designed to be used in a 200-mm-diameter borehole. Driven by a high stress pressuremeter and a hydraulic piston, the BTD can be used to perform a borehole jacking test, plate-loading test, and borehole shear test in the same borehole. A multistage testing procedure was proposed to perform the BTD test. This paper describes the design and operation of the BTD and presents a set of test data to demonstrate the capabilities of the BTD.


    Author Information:

    Huang, A-B
    Professor, National Chiao-Tung University, Hsin-Chu,

    Fang, C-K
    Graduate Research Assistant, National Chiao-Tung University, Hsin-Chu,

    Liao, J-J
    Professor, National Chiao-Tung University, Hsin-Chu,

    Pan, Y-W
    Professor, National Chiao-Tung University, Hsin-Chu,


    Stock #: GTJ11088J

    ISSN: 0149-6115

    DOI: 10.1520/GTJ11088J

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    Author
    Title Development of a Multiple-Purpose Borehole Testing Device for Soft Rock
    Symposium , 0000-00-00
    Committee D18