Search U.S. government technical reports digitized or harvested by TRAIL.
Cooling mine air during summer months to prevent roof falls
Control of roof and prevention of accidents from falls of rock and coal
Survey of practices in controlling roof at intersections and junctions in underground coal mines
The relation of geology to mine roof conditions in the Pocahontas No. 3 coalbed
Geologic factors in coal mine roof stability :a progress report
Recognizing signs of excessive loading in underground coal mines
Factors affecting respirable dust generation from longwall roof supports
Coal mine roof instability :categories and causes
Cutter roof failure :an overview of the causes and methods for control
Roof and rib fall accident and cost statistics :an in-depth study
Application of stereoscopic (3-D) slides to roof and rib hazard recognition training
Practical considerations in longwall face and gate road support selection and utilization
Cutter roof failure :six case studies in the Northern Appalachian Coal Basin