Control of Shale Roof Deterioration With Air Tempering. Volume I-- field and Laboratory Investigations.
Cummings-RA; Singh-MM; Sharp-SE; Laurito-AW
NTIS: PB/82-199985 :164 pages
Certain roof shales in coal mines deteriorate upon exposure to the atmosphere, causing difficulties in the mining operations and adding to the cost. This report presents the results of field investigations in a West Virginia mine and laboratory studies on the effects of atmospheric moisture on roof shales. Based on these observations, a conceptual procedure is presented on how shale deterioration might be predicted during exploration. Guidelines are given detailing how air tempering or conditioning chambers may be designed to reduce moisture effects. Recommendations for further studies are included.
CP; Final Contract Report;
NTIS Accession No.
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