Results 41 - 50 of 150

• Evaluation of Several Natural Gamma Radiation Systems - a Preliminary Study
  1/1/1995 - Information Circulars
  To help evaluate the usefulness of the natural gamma radiation (NGR) technique for the coal interface detection (CID) project, the U.S. Bureau of Mines (USBM) collected data from various mining companies conducting underground and surface operations.
• Examination of Design and Operation Practices for Longwall Shields
  1/1/1992 - Information Circulars
  This report examines shield design, operation practices, and the consequences for using high-capacity shield support systems. An optimization goal is to minimize support loading by using an active shield setting force compatible with strata behavior.
• Explosion Hazards From Methane Emissions Related to Geologic Features in Coal Mines
  4/1/2008 - Information Circulars
  This report presents a historical framework detailing the impact of geologic features on excess gas emissions and resultant mine explosions.
• Explosion Pressure Design Criteria for New Seals in U.S. Coal Mines
  7/1/2007 - Guides and manuals, Information Circulars
  This report provides a sound scientific and engineering justification to recommend a three-tiered explosion pressure design criterion for new seals. The recommendations contained herein apply to new seal design and construction in U.S. coal mines.
• Field Evaluation of Seat Designs for Underground Coal Mine Shuttle Cars
  11/1/2006 - Information Circulars
  NIOSH researchers conducted a study to gather additional data to support earlier findings that NIOSH seats, with unique viscoelastic foam padding, are improved designs for coal mine shuttle cars.
• Fire Response Preparedness for Underground Mines
  1/1/2005 - Information Circulars
  This report deals with the preparedness of miners to respond to underground fires. It is intended to aid the mining industry in understanding the various roles of emergency responders and the training techniques used to increase their skill levels. The ...
• Geologic Hazards and Roof Stability in Coal Mines
  10/1/2003 - Information Circulars
  This report describes the geologic origin, association, and potential danger from the most common hazards. Discussions of weak rock include drawrock, rider coals, head coal, stackrock, and stream valley effects.
• Getting Through to Greenhorns: Do Old Training Styles Work with New Miners?
  9/1/2002 - Information Circulars
  What are the training needs of the younger generation of inexperienced miners? Currently, many trainers are of the so-called Baby Boom generation. Can these different age groups learn to communicate across the generation gap?
• Getting to Zero ... The Human Side of Mining
  3/1/2006 - Information Circulars
  This material was presented at the National Institute for Occupational Safety and Health's (NIOSH) open-industry briefing held during the 2004 Northwest Mining Association conference in Spokane, WA.
• Guide for the Construction of Driven-Rod Ground Beds
  1/1/1978 - Guides and manuals, Information Circulars
  This report describes a method for designing and constructing ground beds that has been developed under the sponsorship of the Bureau of Mines. Results of a bed constructed at the Bureau of Mines mine car roadway are presented.