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