Sunday, 1 February 2009

Plugs and Feathers

Here you can see the "plugs and feathers" breaking off a large rock.
Holes are drilled in the shore platform, and the plugs and feathers inserted. The plugs are hammered to expand the feathers and large chunks of rock split off. Easy! (Except for all the hammering...)

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1 comment:

  1. Roger Close4 February 2009 at 09:21

    It's a dirty great big jackhammer doing the work… can't see no feathers there!

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