Drift mining | Article about drift mining by The Free Dictionary
Also found in: Wikipedia
drift mining[′drift ‚mīn·iŋ]
Working of shallow veins or beds through drifts or shafts from the surface.
References in periodicals archive
In drift mining
, the height of working stalls - the tunnel the miners dig to get coal - is no bigger than the thickness of the coal seam.
It is concluded that the Evans pay streak historically contained higher gold values than the Telegraph, possibly as high as the reported Californian drift mining
average of 0.
Although cheaper, drift mining
is often a more environmentally-intrusive way of removing coal from the ground than deep coal mining.
Rising coal prices have renewed interest in drift mining
, where the seams are accessed by tunnels driven from hillsides rather than costly vertical shafts.