- Author
-
Timko, R. J.
|
Kissell, F. N.
|
Thimons, E. D.
- Title
- Evaluating Ventilation Parameters of Three Coal Mine Gobs.
- Coporate
- Bureau of Mines, Pittsburgh, PA
- Report
-
IC 9109,
1986,
21 p.
- Keywords
-
coal mines
|
mine ventilation
|
mine gases
- Abstract
- The Bureau of Mines used sulfur hexafluoride (SF6) tracer gas to evaluate the effectiveness of gob ventilation and/or sealing practices at three coal mines, each having different problems associated with their mined-out areas.