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Ground control design for highwall mining.

Authors
Zipf-RK
Source
Trans Soc Min Metal Explor 2006 Jan; 318:226-235
NIOSHTIC No.
20030601
Abstract
Highwall mining is an important surface coal mining method, accounting perhaps for approximately 4% of total U.S. coal production. Highwall stability is the major ground control-related safety concern. Ground control plans for highwall mining should specify hole width, web pillar width, barrier pillar width, and number of holes between barriers. This paper offers simple design charts for these parameters aimed at providing "ballpark" checks. Web pillars containing preexisting auger holes are analyzed, and a design chart for estimating their minimum width is also presented. Finally, close-proximity multiple-seam highwall mining, which may have caused several serious highwall failures, is analyzed. Web and barrier pillar recommendations for this special situation are presented.
Keywords
Mining-industry; Ground-control; Surface-mining; Safety-research; Highwall-mining; Geology; Hazards
Contact
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
CODEN
TMENAE
Publication Date
20060101
Document Type
Journal Article
Editors
Yernberg-WR
Fiscal Year
2006
NTIS Accession No.
NTIS Price
ISBN No.
0873352513
ISSN
1075-8623
NIOSH Division
PRL
Source Name
Transactions of the Society for Mining, Metallurgy, and Exploration
State
PA
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