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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.
The unexpected discovery of a former mine shaft is unlikely to delay the rebuilding of a Nottinghamshire landmark, a council has said. Brinsley Headstocks is currently being re-erected after it ...
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 garland was a water channel or gutter in the lining of a mine shaft. Gate. A gate is a tunnel serving the coal face, the maingate is where fresh air enters and the tailgate is where spent air exits. [20] Goaf, gove or gob
Lake Superior Iron Ranges The headframe for shaft #8, still in active use today. In the late 19th century, prospectors searching for gold in northern Minnesota discovered extremely rich veins of hematite at this site, often containing more than 65% iron.
Person on the 1837 man engine at the Samson Pit in Lower Saxony, Germany Bottom of the man engine at the Dolcoath Mine, Cornwall. The earliest known examples of this device were from the first half of the nineteenth century in the silver mining area of the Harz mountains, Germany, where they were driven by cranks connected to water wheels, although bucket hoists ("Hakenkunst") using the same ...
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.
One of the biggest attractions of the Rally of Canberra, and the Castrol International before it, is the special stage called 'The Mineshaft'. The name originates from a section of the stage which plunges very sharply downwards towards a water crossing.