Search U.S. government technical reports digitized or harvested by TRAIL.
Three coal mine gob degasification studies using surface boreholes and a bleeder system
Face ventilation measurement with sulfur hexafluoride (SF₆)
Assessing the methane hazard of gassy coals in storage silos
Reducing dust at longwall shearers by confining the dust cloud to the face
How to evaluate longwall dust sources with gravimetric personal samplers
Determining face methane-liberation patterns during longwall mining
Improved shearer-clearer system for double-drum shearers on longwall faces
Exhaust ventilation of deep cuts using a continuous-mining machine