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Mining Publication: Electromagnetic Noise in McElroy Mine
Keywords: Coal mining Room and pillar mining Statistical analysis
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: September 1974
Authors: M Kanda, JW Adams, WD Bensema
Contract/MOA Report - September 1974
Download PDF Document (5.47 MB)
NIOSHTIC2 Number: 10001385
U.S. Department of the Interior, Bureau of Mines, Contract No. H0133005. NTIS No. Com/741-1717, 1974; :1-156
Two different techniques were used to make measurements of the absolute value of electromagnetic noise in and above an operating coal mine, McElroy Mine, located near Moundsville, West Virginia. The electromagnetic environment created by 300 volt dc and 480 volt ac machinery was measured. In one technique noise was measured over the entire electromagnetic spectrum of interest for brief time periods. The noise was recorded using broadband analog magnetic tape. The noise data was later transformed to give spectral plots. In the other technique, noise amplitudes were recorded at several discrete frequencies for a sufficient length of time to provide amplitude probability distributions. The specific, measured results are given in a number of spectral plots and amplitude probability distribution plots.
Image of publication Electromagnetic Noise in McElroy MineContract/MOA Report - September 1974
Download PDF Document (5.47 MB)
NIOSHTIC2 Number: 10001385
U.S. Department of the Interior, Bureau of Mines, Contract No. H0133005. NTIS No. Com/741-1717, 1974; :1-156
See Also
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Electromagnetic Noise in Lucky Friday Mine
Electromagnetic Noise in Robena No. 4 Coal Mine
Frictional Ignitions in Underground Bituminous Coal Operations 1983-2005
The Ground Response Curve, Pillar Loading and Pillar Failure in Coal Mines
A Hybrid Statistical-Analytical Method for assessing Violent Failure in U.S. Coal Mines
Identification of Areas at Risk for Coal Bursts in Deep Cover Room and Pillar Mines
Knowledge Management and Transfer for Mine Emergency Response
Peak Methane Concentrations During Coal Mining: An Analysis
Propagation of UHF Radio Waves in Limestone Room and Pillar Mines
Support Design Procedures for Difficult Ground Conditions
Surface Magnetic Field Noise Measurements at Geneva Mine
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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