 |
|
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
6 results returnedA study of falls of roof and coal in Northern Colorado
A study of falls of roof and coal, Rock Springs Coal District, Sweetwater County, Wyo.
Places of occurrence of injury from falls of roof
Studies of roof movement in coal mines.
Studies of roof movement in coal mines.
Measurement of pressures on rock pillars in underground mines.
Published Year
Subject
- Mine roof control (6) *
- Mine timbering (2)
- Coal mines and mining (1)
- Coal mines and mining--Pennsylvania (1)
- Mine accidents (1)
- Mine accidents--Colorado (1)
- Mine accidents--Wyoming (1)
- Rock mechanics (1)
- Rock pressure (1)
Author
Search developed and maintained by the University of Washington Libraries
Copyright 2010