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Mining Publication: Analysis of Acoustic Responses of Domal Salt Mine Samples
Keywords: Acoustics Bursts Salts
Original creation date: January 1990
Authors: RH Grau, TE Marshall
Report of Investigations - January 1990
Download PDF Document (0.66 MB)
NIOSHTIC2 Number: 10007394
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9295, 1990 Jan; :1-9
The Bureau of Mines has developed an acoustic test for determining if a rock salt sample is from a "normal" nongassy salt face or from a gassy face where an outburst has the potential to occur. The test is based on the observation that a salt sample taken near an outburst-prone zone produces an audible popping sound when it is dissolved in water. The sound is produced when pressurized gas that is trapped in salt samples is released. In the acoustic test, the sound is electronically measured, digitized, and transmitted to a microcomputer; the output is an average decibel value that classifies the sample as "normal" or "outburst." The acoustic test procedure and equipment are described, and raw test results and data analysis are shown. Results are also shown for several salt samples that were analyzed using a laser Raman microprobe.
Image of publication Analysis of Acoustic Responses of Domal Salt Mine SamplesReport of Investigations - January 1990
Download PDF Document (0.66 MB)
NIOSHTIC2 Number: 10007394
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9295, 1990 Jan; :1-9
See Also
Assessment of Methane Hazards in an Anomalous Zone of a Gulf Coast Salt Dome
Coal Mine Burst Prevention Controls
A Comparison of Beamforming Processing Techniques for Low Frequency Noise Source Identification in Mining Equipment
Gas Content Determinations of Salt Samples Using Acoustic Responses
Investigation of Methane Emissions From an Advancing Face in the Belle Isle Domal Salt Mine, Louisiana
Investigation of Methane Occurrence and Outbursts in the Cote Blanche Domal Salt Mine, Louisiana
Methane Content of Gulf Coast Domal Rock Salt
Noise Source Identification on a Horizontal Vibrating Screen
Passive Fiber Optic System for Locating, Tracking, and Communicating with Personnel in Coal Mines
A Review of the Mechanisms of Gas Outbursts in Coal
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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