Meaning of forepole

fore•pole

Pronunciation: (n.fôr'pōl", fōr'-v.fôr&sylppōl', fōr-), [key]
— n., v., -poled, -pol•ing.
—n.
  1. Also calledany of a number of boards or timbers driven forward on top of a set to protect miners lengthening a tunnel from falling debris.
—v.t.
  1. to reinforce (the end of an excavated tunnel) with forepoles.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.