Results 71 - 80 of 96

• A Technique for Measuring Toxic Gases Produced by Blasting Agents
  1/1/1997 - Conference papers
  Traditional techniques to experimentally determine toxic fumes produced by detonating high explosives are not applicable to blasting agents. To detonate properly, blasting agents require confinement, a significant booster, and other parameters.
• A Guidance Sensor for Continuous Mine Haulage
  10/1/1996 - Conference papers
  Reports on the application of near infrared sensor technology for the automatic guidance of a continuous haulage system
• Low Temperature Limits for Mixing Recycled Oil, Diesel Fuel, and Ammonium Nitrate to Make ANFO-Type Blasting Agents
  2/1/1996 - Conference papers
  Research was conducted to determine the safe operating conditions for using recycled (used) lubricating oil from mining equipment as a partial replacement for diesel fuel to make ANFO-type blasting agents.
• Safety Analysis of Surface Haulage Accidents
  1/1/1996 - Conference papers
  Report on research analyzing single and multiple causes of surface haulage accidents.
• Secondary Explosion Hazards During Blasting in Oil Shale and Sulfide Ore Mines
  11/1/1995 - Reports of Investigations
  Laboratory and field testing results are presented for reducing dust and/or gas ignitions associated with blasting operations in oil shale and sulfide ore mining applications.
• Seismicity and Stress Changes Subsequent to Destress Blasting at the Galena Mine and Implications for Stress Control Strategies
  1/1/1993 - Reports of Investigations
  The U.S. Bureau of Mines conducted research at the Galena Mine, Wallace, ID, with the aim of mitigating the effects of rock bursting.
• Teleoperation of a Highwall Mining System
  1/1/1992 - Reports of Investigations
  The U.S. Bureau of Mines developed and tested a teleoperating system to control a new highwall mining system. Surface and production testing proved that the teleoperating system supplied the operator with sufficient sensory information to operate the m...
• Development and Testing of a Computer-Assisted Remote-Control System for the Compact Loader-Trammer
  1/1/1992 - Reports of Investigations
  A prototype mucking machine designed to operate in narrow-vein stopes was developed by Foster-Miller, Inc., Waltham, MA, under contract with the U.S. Bureau of Mines. To correct deficiencies of the tether-remote-control system, a computer-based, radio-...
• In-Mine Test of the Bureau of Mines Preproduction Wireless Survey System
  1/1/1990 - Reports of Investigations
  The Bureau of Mines preproduction wireless survey system (WSS) and its performance during an in-mine test are discussed in this report. The WSS was developed to reduce downhole surveying time in order to increase the efficiency of drilling long horizont...
• Accurate Directional Borehole Drilling: A Case Study at Navajo Dam, New Mexico
  1/1/1987 - Reports of Investigations
  Describes a project conducted by the Bureau of Mines in which the accurate directional drilling of a borehole was demonstrated with the objective of intercepting a designated target.