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Mining Publication: Technology News 462 - Ground Penetrating Radar for Highwall Guidance
Keywords: Coal mining Ground penetrating radar Highwall miners Highwall mining Highwalls
Original creation date: July 1997
Authors: GL Mowrey
Technology News - July 1997
Download PDF Document (0.04 MB)
NIOSHTIC2 Number: 20000468
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Technology News 462, 1997 Jul :1-2
U.S. highwall operators have been seeking a method to maintain an optimum coal rib thickness throughout the entire depth of the entry, particularly in mines where the depth of penetration can be up to 400 m. In Appalachian coal mines, the typical coal rib thickness is 1 to 2 m, depending on the mechanical properties of the particular coal seam being mined. If the rib becomes too thin, the hazard of ground fall increases and with it the resulting risk of burying the mining equipment. Freeing a buried machine is an expensive process, places workers at risk, and produces no coal. Conversely, if the rib becomes too thick, the excess coal left behind is permanently unrecoverable and makes the rib thin for the next hold. Although the current typical alignment procedures utilize precision surveys, geological and mechanical forces during mining produce uncertainties in position nearly as large as the rib thickness itself at depths of 300 to 400 m despite the accuracy of the initial alignment.
Image of publication Technology News 462 - Ground Penetrating Radar for Highwall GuidanceTechnology News - July 1997
Download PDF Document (0.04 MB)
NIOSHTIC2 Number: 20000468
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Technology News 462, 1997 Jul :1-2
See Also
Analysis of Practical Ground Control Issues in Highwall Mining
Passive Fiber Optic System for Locating, Tracking, and Communicating with Personnel in Coal Mines
A Radar-based Highwall Rib-Thickness Monitoring System
Recent National Institute for Occupational Safety and Health Research Using Ground Penetrating Radar for Detection of Mine Voids
Refuge Alternatives in Underground Coal Mines
Remote Methane Sensors
Safe and Economical Inerting of Sealed Mine Areas
Technical Solutions for Enhancements to Mine Safety Using Barricade II Fire Blocking Gel
Ultra-Low Frequency Through-the-Earth Communication Technology
Wireless Mesh Mine Communication System
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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