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Mine Sealing by Pneumatic Stowing in Ohio.

Authors
Maksimovic-SD
Source
Pres at Abandoned Min Reclam Symp Soil Conerv Soc Am St Clairsville 1982 :14 pages
Link
NIOSHTIC No.
10004050
Abstract
The Bureau of Mines tested a method of constructing mine seals using pneumatic stowing to backfill six abandoned mine openings in Ohio. During the stowing, well-graded aggregate with sufficient fines was ejected from a nozzle at high velocity, creating a high-compaction fill upon impact. The method is safer and faster than conventional methods, it is cost competitive, and it eliminates or reduces the exposure of workers to possible hazards, since they can be kept outside the openings. The technique may be used for sealing abandoned and active mine openings, even in remote locations and during severe weather conditions.
Publication Date
19820101
Document Type
OP;
Fiscal Year
1982
NTIS Accession No.
NTIS Price
Identifying No.
OP 112-84
NIOSH Division
PRC;
Source Name
Pres.at Abandoned Min. Reclam. Symp., Soil Conerv. Soc. Am., St. Clairsville, 1982, 10-1--10-14
State
OH;
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