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Shaft mining or shaft sinking is the action of excavating a mine shaft from the top down, where there is initially no access to the bottom. [1] Shallow shafts , typically sunk for civil engineering projects, differ greatly in execution method from deep shafts, typically sunk for mining projects.
Mine shaft find 'unlikely' to delay headstocks plan. Dan Martin - BBC News, East Midlands. January 23, 2025 at 7:58 AM. The unexpected discovery of a former mine shaft is unlikely to delay the ...
Headframe of the #1 Shaft at Oyuu Tolgoi. A steel headframe is less expensive than a concrete headframe; the tallest steel headframe measures 87 m. [4] Steel headframes are more adaptable to modifications (making any construction errors easier to remedy), and are considerably lighter, requiring less substantial foundations.
A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...
Kimberley Mine shaft. The Kimberley Mine or Tim Kuilmine [ 1 ] ( Afrikaans : Groot Gat ) is an open-pit and underground mine in Kimberley, South Africa , and claimed to be the deepest hole excavated by hand, although this claim is disputed by Jagersfontein .
A shaft is sunk to reach the mineral which is excavated by miners, transported to the surface by a winch, and removed by means of a bucket, much like a well. [1] The bottom of the shaft is enlarged and a sloping roof is created as the desired mineral and surrounding rock is removed – giving its name because the pit in cross section resembles a bell.
Mineshaft may refer to: A long vertical tunnel giving access to a mine's workings, see shaft mining; Mineshaft (gay club), a BDSM-oriented gay sex club in New York City, which operated from 1976 to 1985; Mineshaft (horse), an American thoroughbred racehorse and successful stallion
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