A Self-Boring Pressuremeter System

    Volume 11, Issue 3 (September 1988)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Page Count: 8


    Fahey, M
    Lecturer and senior lecturer, University of Western Australia, Nedlands,

    Jewell, RJ
    Lecturer and senior lecturer, University of Western Australia, Nedlands,

    Brown, TA
    Director, T.A. Brown Electronics, Mt. Lawley,

    Abstract

    The paper describes some of the development work on the Cambridge University version of the self-boring pressuremeter (the so-called “Camkometer”), which has been carried out at the University of Western Australia over a number of years. This work included improvement of the pore-pressure measuring system and development of a deairing system for the pore-pressure transducers, new supply-voltage regulation and signal amplification systems placed down-hole in the instrument itself, test control and data logging using a microcomputer, and a new membrane-protection system. Details of the improved instrumentation are provided. Some test results are included to show that the output from the pore-pressure transducers provides an indication of the “quality” of drilling, especially in clay.


    Paper ID: GTJ10005J

    DOI: 10.1520/GTJ10005J

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    Author
    Title A Self-Boring Pressuremeter System
    Symposium , 0000-00-00
    Committee D18