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Roof control strategies for underground coal mines.

Authors
Smith-WC
Source
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9351, 1993 Jan; :1-17
Link
NIOSHTIC No.
10012111
Abstract
The U.S. Bureau of Mines report presents a general overview of roof bolting and other roof support methods used in the United States. Characteristics of bad roof and associated roof failure theories are briefly presented as background to roof support. Methods of detecting and monitoring roof behavior and/or bolt performance provide essential feedback on roof support requirements. A discussion follows on roof bolt design that assimilates roof and support parameters into useful equations or nomographs to help decide what bolt types to use and how they should be installed under different roof conditions.
Keywords
Mine-safety; Design-standards; Supports; Underground-mining; Coal-mines; Roof-bolts
Publication Date
19930101
Document Type
Information Circular
Fiscal Year
1993
NTIS Accession No.
PB93-207215
NTIS Price
A03
Identifying No.
IC-9351
NIOSH Division
DRC
Source Name
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9351
State
CO
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