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Control of methane by ventilation of shafts during raise drilling
| Author: | Maksimovic, S. D. |
|---|---|
| Year: | 1981 |
| Document Type: | USBI |
| Issuing Agency: | United States Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:8847 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 8847 |
| Subjects: | Methane |
| Raise drilling--Safety measures | |
| Coal mines and mining--Safety measures | |
| Mine ventilation | |
| Link: | https://hdl.handle.net/2027/mdp.39015078457341 |
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