Results 71 - 80 of 102

• Methods for Evaluating Explosion Resistant Ventilation Structures
  7/1/2005 - Conference papers
  Large-scale explosion tests conducted within the multiple-entry section of NIOSH's Lake Lynn Experimental Mine (LLEM) are currently the only accepted test method for deeming a seal design suitable for use in U.S. mines. These explosion tests are labor-i...
• The Use of Nitrogen-Enhanced Foam at the Pinnacle Mine Fire
  6/1/2005 - Conference papers
  This paper evaluates the effectiveness of remotely applied nitrogen-enhanced foam to aid in efforts to isolate and suppress a mine fire.
• Evaluation of Mine Seals Using Ground Penetrating Radar
  3/1/2005 - Conference papers
  NIOSH used ground-penetrating radar (GPR) technology to determine if each of three test mine seals were uniformly constructed. The results suggest that GPR could be used as a tool to evaluate mine seal characteristics and construction uniformity.
• Raising the Bar of Ventilation for Large-Opening Stone Mines
  5/1/2004 - Conference papers
  Describes the results of a case study where NIOSH demonstrates that significant increases in total mine airflow can be achieved and the ventilation improved in a large-opening stone mine by replacing an axial-vane mine fan with two 12-ft diameter propel...
• Ventilation Planning Layouts for Large Opening Mines
  2/1/2004 - Conference papers
  Describes three alternative ventilation models for use in large opening underground mines with respect to their use in mines of various levels of development.
• Alternative Methodologies for Evaluating Explosion-resistant Mine Ventilation Seals
  10/1/2003 - Conference papers
  Discusses the evaluation of a seal evaluation method, based on a hydrostatic pressure loading concept, for in-situ testing of seals in an operating mine.
• Designs for Rapid In-Situ Sealing
  2/1/2003 - Conference papers
  Reports on NIOSH full-scale experiments to evaluate the explosion-resistant characteristics of several new seal designs for rapid deployment during mine emergencies.
• Designs for Rapid in Situ Sealing
  1/1/2003 - Peer reviewed journal articles
  NIOSH, in collaboration with the Mine Safety and Health Administration, the mining industry, and seal manufacturers, conducted a series of full- scale experiments to evaluate the explosion-resistant characteristics of several new seal designs for rapid ...
• Evaluation of Explosion-Resistant Seals, Stoppings, and Overcast for Ventilation Control in Underground Coal Mining
  12/1/2002 - Reports of Investigations
  Evaluation of the strength characteristics and air leakage resistance of numerous innovative seal designs and ventilation control structures for use in underground coal mines.
• Technology News 499 - Using Propeller Fans to Improve Ventilation in Large-Entry Stone Mines
  12/1/2002 - Technology News
  This Tech News reports on how the use of propeller fans can significantly improve the ventilation in large entry stone mines due to their efficiency at lower pressures and less required horsepower.