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  Richard James Robbins

  ...anized tunnel excavation.Those include such fundemental technologies as large diameter disc cutters and Double Shield TBM as well as a precursor to EPB TBM. Dick Robbins has won...

  1787 days ago

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  How much does a Tunnel Boring Machine (TBM) cost?

  ...usually the lowest. On the other hand, if you need to bore a tunnel under a sprawling city center, you'd better use an Earth Pressure Balance (EPB) TBM which will be more expen...

  165 days ago