Twinwall Pipes In Cave Digging

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We used 6m of 900mm internal twinwall at Longcliffe Mine, added in 1m sections with some serious reinforced concrete plugs around it as we backfilled the crater, to replace the original ginged shaft through the hillock, which collapsed in the 1950s. It's 150m up the slope, and it's bloody steep, so the only possible solution. Wonderful stuff, and this time it won't ever collapse again - not there at least :)

Pete K:

--- Quote from: AR on September 23, 2021, 11:40:09 am ---Weight is a big advantage of twinwall; the Wardlow Sough pipe was manhandled into place by about half a dozen people IIRC whereas had it needed to be concrete piping, I don't think we'd have been able to get machinery near enough lift it into the hole!

--- End quote ---
If you do Facebook, you can see us enjoying moving it down the dale on the DCA Page.

You can see some of us enjoying dragging some of ours up the hill! I was far too busy taking the photos and barking instructions. As can clearly be seen, Roy was doing most of the hauling :)


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