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Robbins' Rectangular TBM completes boring a hard rock tunnel in Mexico

    Dave Anderson
    By Dave Anderson Replies (1)

    Robbins announces that the rectangular tunnel boring machine, known as the MDM5000, has successfully bored a hard rock tunnel with flat invert in Fresnillo, Mexico.

    https://www.robbinstbm.com/mdm5000-video/

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    American Tunneler

    American Tunneler

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    cover tunnel photo by: Matt Brown from London, England / CC BY

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