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Leakage Testing of Large Ventilation Control Structures for Room and Pillar Oil Shale Mining.

Authors
Adams-ME; Brechtel-CE; Agapito-JFT; Thimons-ED
Source
Proc 3rd Mine Ventilation Symp 1987 :365-370
Link
NIOSHTIC No.
10005802
Abstract
This paper describes the construction of full-scale stopping and simulated overcast structures in large-opening (30-ft-high by 55-ft- wide) room and pillar excavations in an oil shale mine. The program was undertaken to develop construction techniques and to generate data on structure costs and leakage rates. Leakage rates were measured using both sulfur hexafluoride tracer gas and "brattice window" methods at varying differential pressures. The measurements were conducted before and after a full-scale face blast to characterize the effects of blasting on leakage, and blast air pressures were measured across the stoppings. The operating performance of different combinations of permanent and temporary stoppings was evaluated by developing an operating model for a two- panel oil shale mine. The operating performance for the different stopping combinations was then compared to the system cost to evaluate the overall performance.
Publication Date
19870101
Document Type
OP;
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Identifying No.
OP 13-88
NIOSH Division
PRC;
Source Name
Proc. 3rd Mine Ventilation Symp., 1987, PP. 365-370
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