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Influence of lithology on longwall mining subsidency.

Authors
Tandanand-S; Powell-LR
Source
Min Eng 1984 Dec; 36(12):1666-1671
NIOSHTIC No.
10005208
Abstract
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.
CODEN
MIENAB
Publication Date
19841201
Document Type
OP; Journal Article
Fiscal Year
1985
NTIS Accession No.
NTIS Price
Identifying No.
OP 90-86
Issue of Publication
12
ISSN
0026-5187
NIOSH Division
TCRC
Source Name
Mining Engineering
State
MN
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