Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
8 results returnedSearch results
- Mine roof vibrations from production blasts, Shullsburg Mine, Shullsburg, Wis.
- Mine roof vibrations from underground blasts
- 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