Longwall mining is a form of underground coal mining where a long wall of coal is mined in a single slice (typically 0.6–6.0 m (2 ft 0 in – 19 ft 8 in)...
25 KB (3,210 words) - 17:03, 11 July 2024
techniques also differ greatly from those of surface mining. Longwall mining – A set of longwall mining equipment consists of a coal shearer mounted on a...
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open-cut and longwall mines. Mining at this scale requires the use of draglines, trucks, conveyors, hydraulic jacks, and shearers. The coal mining industry...
78 KB (11,700 words) - 15:31, 26 August 2024
pulling out pit props, used particularly when collapsing the roof during longwall mining. Timberman A timberman cut, shaped and set pit props. Trapper A trapper...
28 KB (3,888 words) - 07:53, 27 August 2024
and pillar mining cannot compete in terms of profitability with many modern, more mechanized types of mining such as longwall or surface mining.[citation...
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Cave-in (category Mining terminology)
reach to the surface. However, roof falls in mining are not all accidental. In longwall mining and retreat mining, miners systematically remove all support...
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Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that...
109 KB (12,925 words) - 23:48, 6 September 2024
Sasol (redirect from Sasol Mining)
mainly uses the room and pillar method of mining with a continuous miner. Sasol successfully used the longwall mining method from 1967 to 1987. Today, Sasol...
44 KB (4,116 words) - 21:16, 26 August 2024
arms which can be used to dig a tunnel in virtually any shape. Longwall mining, a coal-mining method using a series of hydraulic shields Becket, Derrick (1980)...
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underground, leaving a hole called a stope Room and pillar Longwall mining Retreat mining Fire-setting, a method used in stoping by setting fires to timber...
12 KB (1,178 words) - 14:42, 30 March 2024
Sodium bicarbonate (section Mining)
using common underground mining techniques such as bore, drum, and longwall mining in a fashion very similar to coal mining.[citation needed] It is also...
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«China National Coal Group Corp. (CME)» at the mine «Tang Shan Gou» (longwall mining, shearers, three lava, depth 200 m), and at the mine «Nan Liang» (one...
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Broadmeadow Mine BMA's newest punch longwall underground operation on the Goonyella Riverside lease, commenced longwall mining in August 2005. Broadmeadow Mine...
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Mine where a collapse in August 2007 trapped six miners. Longwall mining Mountaintop removal mining Hydraulic fracturing Directional drilling Mark, Chris...
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has an influence on the mining method for example a narrow horizontal vein orebody will be mined by room and pillar or a longwall method whereas a vertical...
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Stoping (redirect from Shrinkage stope mining)
horizontal, various forms of room and pillar stoping, cut and fill, or longwall mining can take place. In steeply-dipping ore bodies, such as lodes of tin...
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Panasqueira (section Longwall)
changing mining industry patterns in the European Union. The stoping methods used in the mine have varied over time: During the 1950s the longwall method...
55 KB (6,525 words) - 18:10, 7 August 2024
Chris Cline (section Coal mining business)
electricity generation. In 2005, Cline Group built its Williamson longwall mining operation south of West Frankfort, Illinois. The company SNL Financial...
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Appalachia (section Coal mining)
in mechanization (such as longwall mining) and competition from oil and natural gas led to a decline in the region's mining operations. Environmental...
137 KB (14,801 words) - 02:22, 6 September 2024
Joy Global (redirect from Joy Mining Machinery)
shearer cuts a 1.2-meter to 6.5-meter swath of material on each pass of longwall mining and simultaneously loads the material onto a conveyor belt. Powered...
21 KB (2,446 words) - 18:34, 23 August 2024
Brazil and Europe via the Goonyella railway line to Hay Point. The longwall mining operations at the mine began in 1998. Extraction occurs roughly 200 metres...
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depth, and the difficulties in providing continuous roof support as on longwall coal mines due to the violence of a face blast in the hard rock of the...
38 KB (3,996 words) - 18:35, 9 September 2024
Wall of Vietnam, between northern and southern Vietnam Longwall mining, an underground mining technique Grand Wall Great Wall (disambiguation) This disambiguation...
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Subsidence (section Mining)
sub-surface mining, and specifically methods which intentionally cause the extracted void to collapse (such as pillar extraction, longwall mining and any...
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feet thick, was always worked using longwall mining, while the lower vein was always mined using room and pillar mining. In 1912, United Mine Workers Local...
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as an authority in his field, he embarked on global travels to observe mining operations and share his expertise. He later built a movie studio in Florida...
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C.; Hargrave, C.O.; Reid, D.C.; Hainsworth, D.W. (December 2008). "Longwall Mining Automation. An Application of Minimum-Variance Smoothing". IEEE Control...
129 KB (20,529 words) - 16:36, 5 September 2024
system. NREC has worked with coal mining industry partners to develop operator assistance technology for longwall mining. This includes a complete navigation...
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Mark A. Smith, son of John Smith (born 1936; underground coal miner Longwall mining) and Rita Joyce Smith (1935–2004; housewife), grew up in Wigston Magna...
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called Sesser Mine, operated from 1905-1923. Subsidence resulting from longwall mining at the Old Ben No. 21 mine, by Old Ben Coal Company, was a concern...
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