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 ...
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Welcome to Sixtownships & Coal Mining Memories UK. This website is our archives. It will be updated on a regular basis, so please be patient. Our heritage is important to us all.
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Mar 28, 2017 · In Decatur, Ill., far from the coal mines of Appalachia, Caterpillar engineers are working on the future of mining: mammoth haul trucks that drive themselves. The trucks have no drivers, not even remote operators. Instead, the 850,000-pound vehicles rely on self-driving technology, the latest in an ...
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COAL MINING HISTORY (Descriptive panel on the Coalmining Display at Eskbank House).In 1838, Andrew Brown of "Cooerwull" wrote in his diary 'getting coal'.
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