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Design Procedures for Coal Mine Tunnels.

Authors
Bieniawski-ZT
Source
NTIS: PB/83-197624 :49 pages
Link
NIOSHTIC No.
10002872
Abstract
Although coal mine tunnels such as the main haulageways or roadways are the lifelines of coal mines, little attention has been paid to them in the United States in terms of preconstruction planning and design. This report summarizes the results of a 3-year research project aimed at improving the design procedures for coal mine tunnels. A new design approach was developed for this purpose and roof-support design charts were prepared for mine tunnels and their intersections. Analytical studies, "base friction" model experiments, and in situ rock stress measurements were performed during this research.
Publication Date
19830101
Document Type
CP; Final Contract Report;
Fiscal Year
1983
NTIS Accession No.
PB83-197624
NTIS Price
A04
Identifying No.
OFR 85-83
NIOSH Division
WO;
Source Name
NTIS: PB/83-197624
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