Results 21 - 30 of 44

• Progress Toward Improved Engineering of Seals and Sealed Areas of Coal Mines
  2/1/2009 - Conference papers
  NIOSH has initiated a seals research program with collaborators from Safety in Mines Testing and Research Station (SIMTARS) in Australia, West Virginia University (WVU), the Naval Research Laboratory (NRL), and U.S. Army Corps of Engineers (USACE).
• Use of Rocsil® Foam to Remotely Construct Mine Seals
  12/1/2008 - Peer reviewed journal articles
  This paper presents an overview of remote mine sealing technology, introduces the use of Rocsil® foam for remote mine seal installations, and offers a case study for the use of this rigid foam material to remotely construct a temporary in-mine.
• Comparison of Methods: Dynamic Versus Hydrostatic Testing of Mine Ventilation Seals
  9/1/2008 - Peer reviewed journal articles
  This paper contrasts the full-scale explosion and hydrostatic testing of mine seals using a simple dynamic system model and principles.
• Performance of a Polyurethane Core Seal Tested in a Hydrostatic Chamber
  5/1/2008 - Reports of Investigations
  This paper presents the results of the full-scale test of a composite polyurethane-aggregate seal in a hydrostatic chamber conducted by NIOSH, and provides an analysis of those results in terms of the structural behavior of the seal.
• Strengthening Existing 20-psi Mine Ventilation Seals With Carbon Fiber-Reinforced Polymer Reinforcement
  1/1/2008 - Reports of Investigations
  This report discusses the testing and full-scale evaluations of a recently developed carbon fiber-reinforced polymer (CFRP) reinforcement technique for upgrading existing mine ventilation seals to withstand an explosion pressure of 50 psi or greater whi...
• Remote Mine Fire Suppression Technology
  11/1/2007 - Conference papers
  This paper presents a summary of remote mine firefighting technologies used in U.S. underground coal mines and the results of completed NIOSH research in that area.
• Evaluation of Remotely Installed Mine Seals for Mine Fire Control
  6/1/2006 - Conference papers
  NIOSH is conducting full-scale underground experiments at its Lake Lynn Experimental Mine to identify and remedy existing shortcomings of remote sealing technology in order to develop new and improved technologies for the mining industry.
• 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.