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“nick r barton”

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  • TBM Tunnelling in Jointed and Faulted Rock

    by Nick R. Barton ...
    This practical guide describes the stage-by-stage development of a method for predicting the penetration rate (PR) and the advance rate (AR) for tunnel boring machines based on an expanded version of the Q-value, QTBM. The author analyzes 145 TBM tunnels that total 1,000km in length. He then develops simple formulae to estimate PR and AR from the QTBM value and to back-calculate QTBM from ... Read more

    $76.99 USD