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Mining Publication: Comparison of Methane Concentrations at a Simulated Coal Mine Face During Bolting
Keywords: Atmospheric monitoring Bolters Faces Methane
Original creation date: April 1999
Authors: CD Taylor, ED Thimons, JA Zimmer
Peer Reviewed Journal Article - April 1999
Download PDF Document (0.14 MB)
NIOSHTIC2 Number: 20000820
J Mine Vent Soc S Afr 1999 Apr 52(2):48-52
Strategies for monitoring methane levels during roof bolting in an extended cut entry were evaluated. Testing was conducted at the Pittsburgh Research Laboratory's methane test gallery. Operating conditions were varied and methane releases at the face and drill holes were simulated. Methane readings were taken at the face, and at locations outby the face. Results show that, when the major source of methane was at the drill holes, the highest methane readings were at locations on or 6.1m inby the bolting machine. Methods for selecting better outby sampling locations, when the majority of the methane is released at the face, are examined. During roof bolting, it is easier to sample at these outby locations rather than at the face. Further testing is needed to determine what relationship exists between methane concentration at the outby locations and at the source of the methane release.
Image of publication Comparison of Methane Concentrations at a Simulated Coal Mine Face During BoltingPeer Reviewed Journal Article - April 1999
Download PDF Document (0.14 MB)
NIOSHTIC2 Number: 20000820
J Mine Vent Soc S Afr 1999 Apr 52(2):48-52
See Also
CFD Modeling of Methane Distribution at a Continuous Miner Face With Various Curtain Setback Distances
Effect of Water Sprays on Airflow Movement and Methane Dilution at the Working Face
Effects of Water Sprays Used With a Machine-Mounted Scrubber on Face Methane Concentrations
Guidelines for the Control and Monitoring of Methane Gas on Continuous Mining Operations
Impact of Unbalanced Intake and Scrubber Flows on Face Methane Concentrations
Predicting Methane Emissions from Longer Longwall Faces by Analysis of Emission Contributors
Prediction of Longwall Methane Emissions and the Associated Consequences of Increasing Longwall Face Lengths: A Case Study in the Pittsburgh Coalbed
Simulation of Methane Flows in Noncoal Mines
Technology News 465 - Method for Predicting Methane Emissions on Extended Longwall Faces
Using Ultrasonic Anemometers to Evaluate Face Ventilation Conditions
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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