Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
7 results returnedSearch results
- Comparative laboratory evaluation of resin-grouted roof bolt elements
- Arch canopy design procedure for rehabilitation of high-roof-fall areas
- Roof and rib fall accident and cost statistics :an in-depth study
- Laboratory assessment of alternative longwall stabilization materials
- Evaluation of a punch shear test device
- Longwall automation :a ground control perspective
- Behavior of simulated longwall gob material
