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I can't visualize what's happening when they move the jacks and let the roof collapse. Obviously they don't let it trap them, but I don't understand where the
by nate_meurer 11y ago
I can't visualize what's happening when they move the jacks and let the roof collapse. Obviously they don't let it trap them, but I don't understand where the face, cutter, and jacks are in relation to the tunnel that lets them in and out. Does anyone here know?
- Turing_Machine 11y agoIt sounds like they were using this technique: http://en.wikipedia.org/wiki/Longwall_mining http://en.wikipedia.org/wiki/Longwall_mining
- nate_meurer 11y agoThanks! Those hydraulics are unreal.
- krupan 11y agoThis video (apparently marketing material from CAT) helped me understand it: https://www.youtube.com/watch?v=bXORrVmxwbM https://www.youtube.com/watch?v=bXORrVmxwbM