CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.
As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
i
Mine fire diagnostics and implementation of water injection with fume exhaustion at Renton, PA
-
1990
-
Series: Mining Publications
[PDF-5.11 MB]
Details:
-
Personal Author:
-
Corporate Authors:
-
Description:"U.S. Bureau of Mines research to develop diagnostic methods to locate and evaluate fires in abandoned mines and waste banks and techniques to extinguish such fires was applied to an abandoned 60-acre underground bituminous coal mine (Renton, Allegheny County, Pennsylvania) to locate and extinguish three separated fire zones. Mine fire diagnostics interpret changes from baseline values in subsurface pressures, temperatures, and mine gas composition under imposed pressure gradients induced by a borehole exhaust fan. The effective gas-sampling area surrounding each borehole is greatly enlarged. Sampling iterations, using a "communicating" boreholes set, provide "fire signature" information for locating both heated and cold areas. Time-dependent monitoring differentiates heating and cooling periods resulting from combustion front movement and/or fire extinguishment activities. A water injection with fume exhaustion extinguishment effort involved injecting water through boreholes to quench the heated zones while exhaust fans actively removed heated gases from the mine. The technique was ineffective as implemented, primarily because of inadequate spreading of water from the injection points. The Bureau's diagnostic method determined the fire locations and the effectiveness of the water injection with fume exhaustion extinguishment technique." - NIOSHTIC-2
NIOSHTIC no. 10009157
-
Subjects:
-
Series:
-
Subseries:
-
Document Type:
-
Genre:
-
Place as Subject:
-
CIO:
-
Pages in Document:ii, 42 numbered pages
-
NIOSHTIC Number:10009157
-
Resource Number:RI-9363
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
