drift mining

(redirected from Drift mines)

drift mining

[′drift ‚mīn·iŋ]
(mining engineering)
Working of shallow veins or beds through drifts or shafts from the surface.
References in periodicals archive ?
The coal industry has now collapsed, leaving a handful of opencast and drift mines employing a few thousand workers.
The 18th Century brought coal mining: drift mines and shallow bell-pits being replaced by deeper shafts meeting industrial and domestic demand, and by 1800 there were more than a dozen pits in the modern-day centre of the town alone.
To work in drift mines, water had to be constantly pumped out.
The alternative site at Liley Lane has been ruled out due to old mine workings, but the proposed cemetery is over the drift mines at Upper Park Wood.
An edition from Tuesday, January 29, 1946, told the story of George Derrick, aged 12, and James Quinn, 10, both of Sutton's Dwellings, Benwell, Newcastle, who had gone in search of coal in the old drift mines.
Underground mining of the high-grade portions of surface placers by Chinese laborers in Nevada in the 1800s, and drift mines in the gut of placers in permafrost, such as in Alaska and the Yukon, are other examples of underground placer operations.
The company has three drift mines in the North-east.
UNIONS are demanding the return of Old King Coal to the region with the opening of two new drift mines under the North Sea.
Mr Hancock said: "I believe we have the potential for a dozen shallow drift mines across the Valleys.
He said drift mines such as Gleision were always wet but he had no reason to suspect a large volume of water lay in the path of the tunnel.