Strength Characteristics and Air-Leakage Determinations for Alternative Mine Seal Designs
Public Domain
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01/01/1993
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Description: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 object...
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NIOSHTIC Number:nn:na
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[PDF - 2.27 MB] -
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Main Document Checksum:urn:sha-512:d59c80f23e35891e8f1273b294772772978a79d215a867c322e929ade842f550570a12d443bc48479d0a301f9d03b79f04479993dd66ca9d016c426a3b6f8f2b
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