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https://en.wikipedia.org/wiki/Coal_mining
Most coal seams are too deep underground for opencast mining and require underground mining, a method that currently accounts for about 60 percent of world coal production. In deep mining, the room and pillar or bord and pillar method progresses along the seam, while pillars and timber are left standing to support the mine roof. Once room and pillar mines have been developed to a stopping ...
https://www.msha.gov/about/program-areas/coal-mine-safety-and-health
Coal Mine Safety and Health enforces the Mine Act at all coal mines in the United States. Enforcement activities include: Conducting numerous inspections, including mandatory quarterly inspections of underground coal mines and semiannual inspections of surface coal mines and facilities each year.
http://www.austarcoalmine.com.au/
The local community of Cessnock have a long and proud association with coal mining history and tradition. Austar Coal Mine (Austar) is continuing this legacy and is the last remaining mine to produce coal in the Cessnock Area. Austar is owned by Yancoa...
http://www.coaleducation.org/glossary.htm
A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.
https://www.worldcoal.org/coal/coal-mining
There are two main methods of underground mining: room-and-pillar and longwall mining. Room-and-pillar mining. In room-and-pillar mining, coal deposits are mined by cutting a network of 'rooms' into the coal seam and leaving behind 'pillars' of coal to support the roof of the mine.
https://www.nap.edu/read/11977/chapter/15
outside the mining area for placement and storage. In the Midwest, where the surface topography and coal seams are generally flat, it is common to employ area strip mining in which the fragmented overburden is placed directly by large draglines in the space created where coal has been mined ().In some situations in the eastern United States, a coal seam occurring near the top of mountains is ...
https://www.nap.edu/read/11977/chapter/6
The U.S. coal industry serves a vital role in the nation’s economy by producing fuel for more than half of its electricity. Despite the industry’s importance, industry financial data for 2005—the strongest year for the coal industry in recent years—shows that it is a relatively small industry with revenues totaling $20 billion to $25 billion and net income between $1 billion and $2 ...
https://www.msha.gov/data-reports/fatality-reports/search
Rescission Date: June 26, 2019. The Acting Chair of MSHA’s Chargeability Review Committee reviewed the death certificate, autopsy report, and MSHA's accident investigation findings and determined that the miner died from natural causes.
https://www.britannica.com/technology/coal-mining
Coal mining, extraction of coal deposits from the surface of Earth and from underground. Coal is the most abundant fossil fuel on Earth. Its predominant use has always been for producing heat energy. It was the basic energy source that fueled the Industrial Revolution of the 18th and 19th
https://en.wikipedia.org/wiki/Sago_Mine_disaster
The Sago Mine disaster was a coal mine explosion on January 2, 2006, at the Sago Mine in Sago, West Virginia, United States, near the Upshur County seat of Buckhannon.The blast and collapse trapped 13 miners for nearly two days; only one survived. It was the worst mining disaster in the United States since the Jim Walter Resources Mine disaster in Alabama on September 23, 2001, and the worst ...
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