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Mining Publication: Proceedings: New Technology for Coal Mine Roof Support
Keywords: Coal mining Longwall shields Roof bolts Roof falls
Original creation date: October 2000
Authors: C Mark, DR Dolinar, RJ Tuchman, TM Barczak, SP Signer, PF Wopat
Information Circular - October 2000
Download PDF Document (17.86 MB)
NIOSHTIC2 Number: 20000874
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, DHHS (NIOSH) Publication No. 2000-151, Information Circular 9453, 2000 Oct; :1-280
Roof falls continue to be the greatest single safety hazard faced by underground coal miners. During 1996-99, 44 coal miners lost their lives in rock falls, and nearly 2,400 were injured. In addition, nearly 6,000 noninjury roof collapses were reported. Roof supports are installed to protect the miners, but support system failures contributed to most of these incidents. Reducing the terrible toll taken by ground falls continues to be a major goal of research by the National Institute for Occupational Safety and Health (NIOSH). The purpose of these proceedings is to provide the mining community with a comprehensive survey of coal mine roof supports. Drawing on many years of research undertaken by the NIOSH Pittsburgh and Spokane Research Laboratories, this volume describes what types of support are available, how they work, and when they should be used. The major subjects covered include roof bolts, standing roof supports, cable supports, and longwall shields. Some special topics are also addressed, including an analysis of roof fall accident statistics, techniques for better skin control, materials handling considerations, and longwall mining through recovery rooms. This proceedings volume also contains information on several important new technologies, which are described here for the first time: - Guidelines for selecting roof bolt length, pattern, and capacity that were derived from statistical analysis of the roof fall experience at 37 underground mines; - A new design method for longwall tailgate supports; and - A technique for measuring loads developed within cable bolts.
Image of publication Proceedings: New Technology for Coal Mine Roof SupportInformation Circular - October 2000
Download PDF Document (17.86 MB)
NIOSHTIC2 Number: 20000874
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, DHHS (NIOSH) Publication No. 2000-151, Information Circular 9453, 2000 Oct; :1-280
See Also
Analysis of Roof Bolt Systems
Current Trends in Reducing Ground Fall Accidents in US Coal Mines
Development and Application of the Coal Mine Roof Rating (CMRR)
Diagnosing and Controlling Moisture-Sensitive Roof in Coal Mines
Factors Influencing Intersection Stability in U.S. Coal Mines
The Introduction of Roof Bolting to U.S. Underground Coal Mines (1948-1960): A Cautionary Tale
Performance Characteristics for Welded Wire Screen Used for Surface Control in Underground Coal Mines
Potential of Roof Screening to Reduce Workers' Compensation Cost
Preventing Falls of Ground in Coal Mines With Exceptionally Low-Strength Roof: Two Case Studies
Roof Screening: Best Practices and Roof Bolting Machines
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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