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Rib stability: practical considerations to optimize rib design.

Authors
Smith-WC
Source
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9323, 1992 Jan; :1-16
NIOSHTIC No.
10011370
Abstract
The Bureau of Mines examined previous research on rib stability in an effort to develop a practical approach to understanding, characterizing, and controlling weak rib conditions in underground coal mines. Because success in stabilizing ribs depends on a basic knowledge of how weak ribs behave, the report reviews the mechanics of rib failure and the relationship of coal mine geology and pillar constraint to rib instability. Strategies for choosing an effective method of rib support are considered, and various rib support methods are discussed. Finally, the report documents techniques for monitoring ribs and use of models to assess rib stability; such monitoring and modeling can also help determine the most effective method for roof support.
Keywords
Mining-industry; Underground-mining; Coal-mining; Geology; Ground-stability; Ground-control
Publication Date
19920101
Document Type
Information Circular
Fiscal Year
1992
NTIS Accession No.
PB2004-106213
NTIS Price
A03
Identifying No.
IC-9323
NIOSH Division
DRC
Source Name
Denver, CO: U.S. Department of the Interior, Bureau of Mines, IC 9323
State
CO
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