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Ground failures in coal mines with weak roof.

Authors
Molinda-G; Mark-C
Source
Electron J Geotech Eng 2010 Jan; 15(F):547-588
NIOSHTIC No.
20037348
Abstract
Coal miners who work and travel under supported roof expect to be protected from rock falls. However, rock fall accidents and injuries continue to occur in coal mines that have been supported according to the roof control plan. Experience at coal mines with large numbers of falls indicates that many have weak roof. Control of this roof may require additional ground control measures. An understanding of the geologic and stress conditions which lead to roof falls is necessary to assess the risk of failure and to design roof reinforcement to improve stability. Six common roof fall types, with attached field examples, are described. Roof support practices for each fall type are also described.
Keywords
Coal-workers; Coal-mining; Coal-miners; Underground-mining; Underground-miners; Rock-falls; Ground-control; Ground-stability; Geology; Accident-prevention; Mine-shafts; Author Keywords: coal mining safety; rock mechanics; geological hazards; roof falls
Contact
Chris Mark, PhD, National Institute for Occupational Safety and Health (NIOSH) P.O. Box 18070, Cochrans Mill Rd. Pgh., PA 15236
CODEN
EJGEFK
Publication Date
20100101
Document Type
Journal Article
Email Address
cnm4@cdc.gov
Fiscal Year
2010
NTIS Accession No.
NTIS Price
Issue of Publication
F
ISSN
1089-3032
NIOSH Division
OMSHR
Source Name
The Electronic Journal of Geotechnical Engineering
State
PA
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