Search U.S. government technical reports digitized or harvested by TRAIL.
Determining face methane-liberation patterns during longwall mining
The Effects of a retreating longwall on a three-entry gate road system
Dust control on longwall shearers using water-jet-assisted cutting
Using barriers to reduce dust exposure of longwall face workers
Dust controls to improve quality of longwall intake air
Longwall roof support technology in the eighties :a state-of-the-art report
Shield mechanics and resultant load vector studies
Direct measurement of longwall strata behavior :a case study
Critical-load studies of a shield support
Rigid-body and elastic solutions to shield mechanics
Three-dimensional shield mechanics
Water infusion for coal mine dust control :three case studies
Cost comparison of gob hole and cross-measure borehole systems to control methane in gobs
Effects of various longwall chain pillar configurations on gate road stability
Horizontal and vertical load transferring mechanisms in longwall roof supports
Laboratory assessment of alternative longwall stabilization materials
Stiffness characteristics of longwall shields
Investigation of dust sources and control technology for longwall plow operations