Search U.S. government technical reports digitized or harvested by TRAIL.
Rock noise source location techniques
A method for estimating strength of rock containing planes of weakness
A least squares method for improving the source location of rock noise
Determination of attitudes of joints surveyed with a borescope in inclined boreholes
Rock damage from small charge blasting in granite
Strengthening of fractured rock pillars by the use of small radial reinforcement pressures
Bureau of Mines test procedures for rocks,
A new method of analysis to obtain exact solutions for stresses and strains in circular inclusions
A standard rock suite for rapid excavation research
NX borehole jack modulus determinations in homogeneous, isotropic, elastic materials
Chemical analysis of slickensides from coal mine roof shale
Structural analysis of a coal mine opening in elastic, multilayered material
Tilt precursors in rock before failure :a laboratory investigation
Thermomechanical method for secondary breakage of hard rocks
Submersion testing of coatings for sealing shale
Iterative approximation techniques for microseismic source location
Effects of time between exposure and support on mine roof stability, Bear Coal Mine, Somerset, Colo.
Pillar failure analysis and in situ stress determinations at the Fletcher mine near Bunker, Mo.
Geology of the single-entry project at Sunnyside Coal Mines 1 and 2, Sunnyside, Utah
Flexible, fiberoptic stratascope for mining applications
Stress-induced failures in mine roof
Slickenside occurrence in coal mine roof of the Valley Camp no. 3 mine near Wheeling, W. Va.
Rock preconditioning to prevent rock bursts :report on a field demonstration