Results 41 - 50 of 52

• The Concept of Degraded Images Applied to Hazard Recognition Training in Mining for Reduction of Lost-Time Injuries
  7/1/2003 - Peer reviewed journal articles
  This paper discusses the application of a training intervention that uses degraded images for improving the hazard recognition skills of miners.
• Shear Origin of Tension in Excavation-Induced Fractures
  6/1/2003 - Conference papers
  The authors hypothesize that excavation-induced extension fractures are caused by elastic shearing displacement that in turn causes tension oblique to a propagating shear zone.
• A Method for Modeling Variation of In Situ Stress Related to Lithology
  7/1/2001 - Conference papers
  Assuring ground control safety in many mining and tunneling projects depends, at least in part, on an understanding of in situ stress conditions that will be encountered.
• The Forgotten Denominator: Pillar Loading
  8/1/2000 - Conference papers
  This paper addresses a deficit in pillar loading research by exploring the accuracy of empirical abutment load calculations using insight provided by an elastic overburden model, a laminated overburden model and field observations.
• Water Mist Extinguishment of Pool Fires: A Parametric Approach
  3/1/1998 - Conference papers
  This paper describes a relatively simple indirect model for the parametric water injection process to extinguish diesel fuel fires in underground mine diesel refueling areas.
• Work Principle for Predicting Explosive Toxic Fumes
  2/1/1998 - Conference papers
  Research on applying the work principle to the non-ideal conditions of mining explosives to determine toxic fume production.
• Biomechanical Modeling of Asymmetric Lifting Tasks in Constrained Lifting Postures
  10/1/1997 - Conference papers
  Twelve subjects participated in an investigation of the biomechanical stresses of asymmetric lifting in stooped and kneeling postures. Three factors were manipulated in this study: posture (stooped or kneeling), height of lift (35 or 70 cm), and weight ...
• Rib Stability: Practical Considerations to Optimize Rib Design
  1/1/1992 - Information Circulars
  Reviews the mechanics of rib failure and the relationship of coal mine geology and pillar constraint to rib instability. Strategies for choosing an effective method of rib support are considered and various rib support methods are discussed.
• Modeling and Data Analysis of 50 to 5000 kHz Radio Wave Propagation in Coal Mines
  2/1/1990 - Contract reports
  This supplement to the final report is a collection of interim and monthly reports and working memoranda prepared during the course of this program to document the progress, methods and results of the work.
• Theoretical Noise and Propagation Models for Through-the-earth Communication
  9/1/1982 - Contract reports
  A survey of the literature on extremely low-frequency and very low- frequency atmospheric noise was made.