Results 551 - 560 of 646

• An Overview of Geomechanics Safety Research on Mobile Roof Supports
  1/1/1999 - Conference papers
  A study on the mechanics of strata behavior determined through extensive field measurements. Practical techniques for assessing roof behavior were developed along with a prototype remote controlled roof support system.
• Analysis of the Interaction Between Mobile Roof Supports and Mine Strata
  11/1/1998 - Conference papers
  To provide a better understanding of the mechanics of strata deformation, the authors have collected and reviewed measurements of convergence and stress in one western U.S. mine and have completed modeling for two typical pillar-pulling plans.
• Work Sampling Applied to a Human Factors Analysis of Mine Worker Positioning
  10/1/1998 - Conference papers
  Growing concern from labor unions, regulatory agencies, and industry about the safety of a prevalent underground coal mining method which utilizes remote control has prompted human factors field evaluation of mining activities. To determine work methods...
• Evaluation of Mining Activities Using a Scenario Interview Approach
  10/1/1998 - Conference papers
  NIOSH researchers assert that the use of a realistic scenario interview will result in frank and detailed responses from face crew members. This approach provides an effective means of acquiring worker perceptions of the types of hazards that exist, the...
• Using Coal Miners' Experience To Identify Effective Operating Cues
  10/1/1998 - Conference papers
  Like many experienced workers, remote control continuous miner operators perform their everyday jobs making choices and decisions that they may not consciously think about. To better understand what potential cues and feedback help to guide the operator...
• Comparison of Ground Conditions and Ground Control Practices in the United States and Australia
  8/1/1998 - Conference papers
  Ground conditions at 10 Australian longwall mines and two room-and-pillar mines are compared with an extensive database from U.S. mines. Comparisons include the Coal Mine Roof Rating, roof support, pillar design, and ground control conditions.
• Advances in Remote Sensing Techniques for Monitoring Rock Falls and Slope Failures
  8/1/1998 - Conference papers
  This paper describes the potential adaption of systems such as interferometric synthetic aperture radar, imaging spectroscopy, and time-domain reflectometry, to slope monitoring and design.
• Factors Influencing Intersection Stability in U.S. Coal Mines
  8/1/1998 - Conference papers
  Based on field investigations and a U.S. coal mines database containing 12 mines and 639 roof falls, NIOSH determines the factors that influence intersection instability and provides guidelines for the safe excavation and support of intersections.
• Overview of Mine Fire Detection
  8/1/1998 - Conference papers
  Several experimental programs were conducted at the Pittsburgh Research Center to investigate the level of mine fire detection and alarm capability possible using state-of-the-art technology.
• Rock Bursting and Seismicity During Ramp Development, Lucky Friday Mine, Mullan, Idaho
  8/1/1998 - Conference papers
  A comprehensive survey of mine seismicity a rock bursting during development of two sublevels at the Lucky Friday Mine, Mullan, ID, was conducted to better define rock failure mechanisms and sources of ground control hazards.