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Influence of lithology on longwall mining subsidency.
Min Eng 1984 Dec; 36(12):1666-1671
The U.S. Bureau of Mines assessed the geological effects on the ratio of maximum subsidence and extraction thickness, known as the subsidence factor, to develop a simple method for predicting the maximum subsidence. The study was restricted to the Northern Appalachian Coal Basin where data were collcted from 13 coal mines. A model previously developed to relate the subsidence factor with the lithology and with the width and depth of working panels was used in the assessment. The result shows the possibility of determining maximum subsidence without resorting to a rigorous method.
OP; Journal Article
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Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division