Results 11 - 17 of 17

• Short-Encapsulation Pull Tests for Roof Bolt Evaluation at an Operating Coal Mine
  8/1/2003 - Conference papers
  This paper presents information that shows that short-encapsulation pull tests can provide the information necessary to improve ground control in variable roof conditions.
• The Introduction of Roof Bolting to U.S. Underground Coal Mines (1948-1960): A Cautionary Tale
  8/1/2002 - Conference papers
  The story of how roof bolting was implemented by the mining industry, but took so long to live up to its promise, is a fascinating example of the interaction between economics, technology, regulation, and science. It still has important lessons for today.
• Preventing Injuries Caused by Unrecognized Stone Mine Roof Beam Failures With a Pro-Active Roof Control Plan
  3/1/1999 - Conference papers
  To help mitigate the potential for falls-of-ground injuries to underground stone miners, NIOSH developed the Roof Monitoring Safety System (RMSS) to aid in monitoring dangerous levels of roof beam deflection.
• Rock Falls - Preventing Rock Fall Injuries in Underground Mines
  1/1/1999 - NIOSH/USBM numbered publications, Videos and multimedia
  This video teaches the importance of proper roof scaling in underground mining to avoid injury and improve work conditions.
• Canopy and Base Load Distribution on a Longwall Shield
  1/1/1992 - Reports of Investigations
  Roof and floor contact pressure provided by the interaction of a shield with the surrounding strata are examined. Controlled forces were applied to an 800-ton two-leg shield using a mine roof simulator.
• Protective Structures for Low-Coal Shuttle Car Operator
  1/1/1987 - Reports of Investigations
  Three possible limited-coverage design scenarios (roll bars, sliding canopies, and flip-top canopies) were designed, fabricated, and evaluated for low-coal shuttle cars. All three designs were determined to be feasible and desirable.
• Design Criteria and Guidelines for Falling Object Protective Structures (FOPS)
  2/1/1976 - Contract reports, Open File Reports, Safety guidelines, tips, and checklists
  This study addresses several engineering and economic facets of possible roll-over protective structure (ROPS) and falling object protection structure (FOPS) requirements in the metal-nonmetal mining industry.