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Search U.S. government technical reports digitized or harvested by TRAIL.
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4 results returnedPrecautions to be observed in entering abandoned exploratory shafts and pits
A method for locating abandoned mines
Blind pneumatic stowing in voids in abandoned mines
Improved drilling of coal measure rocks for underground mine void detection and exploration programs
Published Year
Subject
- Abandoned coal mines (4) *
- Abandoned coal mines--Accidents (1)
- Abandoned mines (1)
- Abandoned mines--Risk assessment (1)
- Blackdamp (1)
- Coal-cutting bits (1)
- Compressed air (1)
- Electric prospecting (1)
- Electric resistance (1)
- Firedamp (1)
- Methane (1)
- Mine filling (1)
- Mine gases (1)
- Mine gases--Safety measures (1)
- Mine safety (1)
- Mine shafts (1)
- Mine shafts--Safety measures (1)
- Mine surveying (1)
- Mines and mineral resources (1)
- Polyethylene oxide (1)
Author
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