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Longwall mining
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{{Short description|Form of underground coal mining}} {{Lead too short|date=March 2021}} [[File:SL500 01.jpg|frameless|right|250px]] '''Longwall mining''' is a form of underground [[coal mining]] where a long wall of coal is mined in a single slice (typically {{cvt|0.6| β |6.0|m}} thick). The section of rock that is being mined, known as the longwall panel, is typically {{cvt|3|β|4|km}} long, but can be up to {{cvt|7.5|km}} long and {{cvt|250|β|400|m}} wide. The longwall method [[underground_soft-rock_mining#Methods_of_underground_soft_rock_mining|compares with shortwall, room-and-pillar, and several others]].
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