Longwall mining in Western PennsylvaniaIn longwall mining, a very large block or "panel" of coal is isolated by the development of entries and crosscuts. Special mining and roof support equipment is then set up along the working face. This working face can be anywhere from 800 to 1,500 feet wide. The coal is mined by a longwall mining machine that moves across the face.
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Continuous mining machine MSHAmining machine, adjacent to the machine's cable standoff anchor. He was making the final cleanup run along the right rib line when he turned the front of the continuous mining machine to the left, pinning himself between the machine and the right coal rib, causing fatal crushing injuries. There were no eyewitnesses to the accident.
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