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Strength characteristics and air-leakage determinations for alternative mine seal designs.

Authors
Weiss-ES; Greninger-NB; Stephan-CR; Lipscomb-JR
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9477, 1993 Jan; :1-21
NIOSHTIC No.
10004319
Abstract
During the normal course of underground coal mining, it sometimes becomes necessary to seal off abandoned areas to eliminate the need to ventilate them. Seals also are used to isolate fire zones or areas susceptible to spontaneous combustion. The objective of the research is to determine whether seals constructed from various materials and designs can withstand a 20-psig methane-air explosion without losing their structural integrity.
Keywords
Mining-industry; Underground-mining; Coal-mining; Explosions; Explosive-atmospheres; Explosive-gases; Methanes
Publication Date
19930101
Document Type
Report of Investigations
Fiscal Year
1993
NTIS Accession No.
PB94-111275
NTIS Price
A03
Identifying No.
RI-9477
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9477
State
PA
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