Search U.S. government technical reports digitized or harvested by TRAIL.
Probability of encountering coalbed discontinuities during vertical and horizontal borehole drilling
Coal-cutting forces and primary dust generation using radial gage cutters
Overlap probability for short-period-delay detonators used in underground coal mining
Underground coal mine lighting handbook, (in two parts).
Underground coal mine lighting handbook, (in two parts).
Analysis of cutter roof failure induced by clastic dikes in an underground coal mine
A review of the mechanisms of gas outbursts in coal
Coal extraction, transport, and logistics technology for underground mining
Comparative study of pillar load transfer associated with multiple-seam mining
Loading characteristics of pillars in multiple-seam mining operations
Leakage across a bituminous coal mine barrier
Control of diesel particulate matter in underground coal mines