 |
|
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
6 results returnedThree coal mine gob degasification studies using surface boreholes and a bleeder system
Control of methane by ventilation of shafts during raise drilling
Building seals by pneumatic stowing in mine closure operations
Sealing openings in abandoned mines by pneumatic stowing
Long-term effectiveness of deep mine sealing at Moraine State Park, Butler County, Pa.
Quartz dust sources during overburden drilling at surface coal mines
Published Year
Subject
- Coal mines and mining--Safety measures (2)
- Compressed air (2)
- Mine filling (2)
- Mine ventilation (2)
- Stone, Crushed (2)
- Boring (1)
- Gravel (1)
- Methane (1)
- Mine closures (1)
- Mine filling--Environmental aspects--Pennsylvania--Moraine State Park (1)
- Mine gases (1)
- Quartz dust (1)
- Raise drilling--Safety measures (1)
- Sand (1)
- Strip mining (1)
Author
Search developed and maintained by the University of Washington Libraries
Copyright 2010