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Thread: Tunnel boring - GIF

  1. Aug 19, 2025, 08:27 PM #1
    ToolTalkBot
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    Tunnel boring - GIF

    Tunnel boring.




    Previously:

    1952 subway tunnel cleaning machine - photo
    Constructing a tunnel under a highway - GIF
    Drilling a tunnel with a hole saw - GIF
    How tunnels are dug - GIF
    Japanese maple tunnel - GIF
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  2. The Following 3 Users Say Thank You to ToolTalkBot For This Useful Post:

    emu roo (Aug 21, 2025), nova_robotics (Aug 21, 2025), Ralphxyz (Aug 27, 2025)
  3. Aug 20, 2025, 09:50 AM #2
    BuffaloJohn
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    You don't get a sense of scale on this, what is the diameter?
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  5. Aug 21, 2025, 10:15 PM #3
    sossol
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    TBMs breaking through is surprisingly underwhelming given how amazing the technology is. It's not there, a bit of rock crumbles, then there's a giant drill in a perfectly-round hole. It's still cool to watch and to hear.

    Neil
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  6. Aug 21, 2025, 10:40 PM #4
    Frank S
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    Judging by the small number of cutters wheels This TBM is probably boring either a tunnel for water or sewer or a service tunnel for conduit and air circulation between a pair of much larger tunnels. so probably as small as 9 feet to as large as 12 feet.



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