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Rock mechanics study of a longwall panel.

Authors
Wade-LV; Conroy-PJ
Source
Min Eng 1980 Dec; 32(10):1728-1734
NIOSHTIC No.
10000586
Abstract
Old Ben Coal Co. successfully completed the first longwall panel in Illinois. The panel was mined using shield supports and was part of a cooperative agreement with the US Bureau of Mines. This paper describes the rock mechanics studies which were performed to monitor: the performance of the supports, the stress changes in the coal and floor, convergence in entries, and caving mechanism of the roof. From this study, maximum support loads were obtained as well as the stress distribution in the panel, floor and adjacent pillars.
Keywords
Mine-shafts; Mineral-processing; Mining-industry; Mining-equipment; Underground-mining; Longwall-mining; Rock-mechanics
CODEN
MIENAB
Publication Date
19801201
Document Type
OP; Journal Article
Fiscal Year
1981
NTIS Accession No.
NTIS Price
ISSN
0026-5187
NIOSH Division
PRC
Source Name
Mining Engineering
State
PA
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