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Home / Series / Practical Engineering / Aired Order / Season 2018 / Episode 7

Why Tunnels Don't Collapse

How simple reinforcement is used to prevent collapse of rock tunnels.

English
  • Originally Aired July 24, 2018
  • Runtime 9 minutes
  • Production Code xNDppVTVUss
  • Created August 29, 2020 by
    Administrator admin
  • Modified August 29, 2020 by
    Administrator admin