Search U.S. government technical reports digitized or harvested by TRAIL.
Mine roof vibrations from underground blasts
Mine roof vibrations from production blasts, Shullsburg Mine, Shullsburg, Wis.
Airblast-overpressure levels from confined underground production blasts
Ground vibrations from tunnel blasting in granite :Cheyenne Mountain (NORAD), Colo.
Rock damage from small charge blasting in granite
Fracturing in the zone around a blasthole, White Pine, Mich.
ARPA-Bureau of Mines rock mechanics and rapid excavation program :a research project summary
Mechanized longwall mining :a review emphasizing foreign technology