Results 361 - 370 of 646

• Fugitive Carbon-Based Gases: Blasting Related or Not
  2/1/2004 - Conference papers
  This paper discusses elements of a stray gas investigation and the analyses necessary to identify the source of a stray gas.
• CO Migration from Trench Blasting in Amherst, New York
  2/1/2004 - Conference papers
  A general overview of the blasting and CO monitoring of a highway construction project is presented and discussed. The use and effectiveness of residential type CO monitors and multi-gas monitors are discussed.
• Blasting-Related Carbon Monoxide Incident in Bristow, Virginia
  2/1/2004 - Conference papers
  A detailed description of blasting-related carbon monoxide migration from a construction site into nearby residential homes.
• Reducing the Risk of Ground Falls During Pillar Recovery
  12/1/2003 - Conference papers
  Pillar recovery has been associated with nearly one third of roof fall fatalities in underground coal mines during the past decade. This paper discusses design methods and technologies that have been transferred and implemented in mining.
• Evaluation of IYONI II Methanometers
  10/1/2003 - Conference papers
  Report on a series of performance tests conducted on the IYONI II methanometer. Testing methods included use of a calibration fixture, an environmental test box and a full scale test gallery.
• Teaching Miners: Breaking the Barriers to Learning
  10/1/2003 - Conference papers
  Miners, like many skilled blue-collar workers, are not traditional learners. They have not always been successful in classroom-type settings, preferring to learn on the job in a hands-on environment.
• Alternative Methodologies for Evaluating Explosion-resistant Mine Ventilation Seals
  10/1/2003 - Conference papers
  Discusses the evaluation of a seal evaluation method, based on a hydrostatic pressure loading concept, for in-situ testing of seals in an operating mine.
• Remote Monitoring of Mine Seismicity and Earthquakes Using Radio Telemetry, Computers, and the Internet
  9/1/2003 - Conference papers
  A system to collect seismic data at the Stillwater and East Boulder mines was developed to get baseline information on the magnitude and location of mining-induced seismicity to determine if the mines needed multi-channel in-mine monitoring systems.
• Determination of In Situ Deformation Modulus for Cemented Rockfill
  9/1/2003 - Conference papers
  As part of safety and stability studies at three underground mines in the United States, researchers installed earth pressure cells and embedment strain gauges in cemented rockfill to measure stress and strain changes as mining progressed and the rockfi...
• A Miniature Data Acquisition System with LED Warning Lights
  9/1/2003 - Conference papers
  Researchers have developed a miniature data acquisition system (MIDAS) that can measure resistance changes and temperature, store data for later retrieval, and illuminate LED lights. This instrument can be used with strain-gaged bolts, cable bolts, CSIR...