Mining Publication: The Long-term Performance of Surface Support Liners for Ground Control in an Underground Limestone Mine
Original creation date: August 2003
During the past few years, the Pittsburgh Research Laboratory of the National Institute for Occupational Safety and Health (NIOSH) has been evaluating developments with surface support liners which includes shotcrete and thin spray-on liners (also referred to as sealants, coatings and membranes) from a ground control perspective. The proper selection and use of a surface support material can significantly enhance ground control which may result in a decrease in worker related injuries due to ground falls. The purpose of this paper is to evaluate the preliminary findings of a long-term underground study of various types of surface support liners, and to examine installation practices that are critical for an effective liner material application. The underground study utilizes NIOSH’s Lake Lynn Laboratory Experimental Mine to evaluate the long-term performance of several types of shotcrete and thin spray-on liner materials. Liner material performance to date was evaluated on a regular basis over a three year period. Although the study is still ongoing, critical mining practices were identified that may seriously affect the bond of the liner material to the mine roof and rib.
Authors: DM Pappas, TM Barton, ES Weiss
Conference Paper - August 2003
NIOSHTIC2 Number: 20023583
In: Hadjigeorgiou J, ed. Proceedings of the Third International Seminar on Surface Support Liners: Thin Spray-On Liners, Shotcrete, and Mesh (Quebec City, Canada, August 25-26, 2003). Section 10, 2003 Aug; :1-22
See Also
- Developments in Sealant Support Systems for Ground Control
- Roof and Rib Hazard Assessment for Underground Stone Mines
- Roof Monitoring in Limestone - Experience with the Roof Monitoring Safety System (RMSS)
- Roof Screening for Underground Coal Mines: Recent Developments
- Shotcrete Design and Installation Compliance Testing: Early Strength, Load Capacity,Toughness, Adhesion Strength, and Applied Quality
- Stability Mapping to Examine Ground Failure Risk: A Field Study at a Limestone Mine
- Technology News 434 - An 'Insulating' Shotcrete for Heat Abatement in Deep Mines
- Technology News 526 - Proceedings of the International Workshop on Rock Mass Classification in Underground Mining
- Technology News 542 - Field Use Round Determinate Panel Test System
- Variation of Horizontal Stresses and Strains in Mines in Bedded Deposits in the Eastern and Midwestern United States
- Page last reviewed: 9/21/2012
- Page last updated: 9/21/2012
- Content source: National Institute for Occupational Safety and Health, Mining Program