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Oct242016

Top Down - Tunnels and Tunneling magazine article July 2016

DateMonday, October 24

Last December a mining company raise boring a deep shaft needed to accomodate for questionable ground. Nicole Robinson reports on a centrifugal sprayed concrete lining applied in one work day.
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  • Response
    Response: check the website
    by Junoe at Junoe on December 14, 2019
    I want to gather the best top down tunnels technology magazines and articles. Everything they prefer to gather the technologies and articles to improvise their news factors.
  • Response
    Response: the celebrity birthdays
    by Clare Denvers at celebrity birthdays on September 17, 2020

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