Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Air-sealing coal mines to reduce water pollution

The effect of atmospheric pressures on the oxygen level in a sealed mine

Geologic and ground-control aspects of an experimental shortwall operation in the upper Ohio Valley

Roof rock structures and related roof support problems in the Pittsburgh coalbeds of southwestern Pennsylvania

Published Year

• 1970-1979 (4) *

Subject

• Coal mines and mining--Ohio River Valley Region (1)
• Coal--Geology--Pennsylvania--Pittsburgh coalbed (1)
• Groundwater--Pollution (1)
• Mine roof bolting (1)
• Mine timbering (1)
• Mine water (1)
• Mining engineering (1)
• Mining geology--Ohio River Valley Region (1)
• Mining water (1)

Author

• Moebs, Noel N. (4) *
• Chamberlain, C. E. (1)
• Curth, Ernest A., (1)
• Krickovic, Stephen. (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010