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Mining Product: Best Practices and Bolting Machine Innovations for Roof Screening
Keywords: Costs Roof bolts Roof falls Roof screen Skin control
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: February 2003
Authors: SB Robertson, GM Molinda, DR Dolinar, DM Pappas, GE Hinshaw
Conference Paper - February 2003
Download PDF Document (0.14 MB)
NIOSHTIC2 Number: 20023170
2003 SME Annual Meeting, Feb 24-26, Cincinnati, Ohio, preprint 03-158. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc.; :1-8
Rock falls in coal mines cause many injuries each year. Most of these injuries are not caused by major roof collapses, but from falls of smaller rocks from the immediate top or roof skin. Even though safety professionals and mine operators strive to reduce these types of injuries, there has not been a substantial decrease in the rock fall injury rate over the past decade. Various surface controls are used in mines to control the roof skin. One control that has proven to be very effective is roof screening. Roof screen effectively controls roof skin and provides a high roof surface coverage. Although many mines are reluctant to use screen for primary skin control because of the additional costs of time and materials, others are having great success at controlling both the costs and surface rock. In this study, injury data are presented that show a dramatic reduction in roof skin injuries when screening is used. Much of this success is due to the protection from falling rock that the operators receive from roof screen. Five case studies in which roof screen was used are presented along with the associated costs of materials, impact on bolting advance rates, and potential ergonomic risks. The effects of roof screening on skin control and safety are also included. Finally, this paper provides information about best practices and features of roof bolting machines that affect production and safety.
Image of publication Best Practices and Bolting Machine Innovations for Roof ScreeningConference Paper - February 2003
Download PDF Document (0.14 MB)
NIOSHTIC2 Number: 20023170
2003 SME Annual Meeting, Feb 24-26, Cincinnati, Ohio, preprint 03-158. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc.; :1-8
See Also
Analysis of Roof Bolt Systems
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
Load Capacity and Stiffness Characteristics of Screen Materials Used for Surface Control in Underground Coal Mines
Make it Safer with Roof Screen
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
Proceedings: New Technology for Coal Mine Roof Support
Roof Screening: Best Practices and Roof Bolting Machines
Page last reviewed: April 25, 2017
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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