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Mining Publication: Ground Control Design for Highwall Mining
Keywords: Barrier pillars Ground stability Highwall design Pillar design Web pillars
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: February 2005
Authors: RK Zipf
Conference Paper - February 2005
Download PDF Document (0.46 MB)
NIOSHTIC2 Number: 20026233
2005 SME Annual Meeting, February 28 - March 2, Salt Lake City, Utah, SME preprint 05-82. Littleton, CO, Society for Mining, Metallurgy, and Exploration, Inc., 2005; :1-12
Highwall mining is an important surface coal mining method, and it may account for approximately 4% of total U.S. coal production. Highwall stability is the major ground control related safety concern. Ground control plans for highwall mining should specify hole width, web pillar width, barrier pillar width and number of holes between barriers. This paper offers simple design charts for these parameters aimed at providing "ball park" checks. Web pillars containing pre-existing auger holes are analyzed and a design chart for estimating their minimum width is also presented. Finally, close proximity multiple seam highwall mining, which may have caused several serious highwall failures, is analyzed. Web and barrier pillar recommendations for this special situation are presented.
Image of publication Ground Control Design for Highwall MiningConference Paper - February 2005
Download PDF Document (0.46 MB)
NIOSHTIC2 Number: 20026233
2005 SME Annual Meeting, February 28 - March 2, Salt Lake City, Utah, SME preprint 05-82. Littleton, CO, Society for Mining, Metallurgy, and Exploration, Inc., 2005; :1-12
See Also
Analysis of Highwall Mining Stability - The Effect of Multiple Seams and Prior Auger Mining on Design
Analysis of Multiple Seam Stability
ARMPS - Analysis of Retreat Mining Pillar Stability - 6.2.02
ARMPS-HWM - Analysis of Retreat Mining Pillar Stability - Highwall Mining - 1.3.02
Deep Cover Pillar Recovery in the US
Pillar Strength and Design Methodology for Stone Mines
Simplified Pre- and Post-Processing Technique for Performing Finite-Element Analyses of Deep Underground Mines
Slope Stability
Technology News 464 - Analysis of Retreat Mining Pillar Stability (ARMPS): Version 4.0 for Windows
Technology News 516 - ARMPS-HWM: New Software for Sizing Pillars for Highwall Mining
Using the Coal Mine Roof Rating (CMRR) to Assess Roof Stability in U.S. Coal Mines
Page last reviewed: November 3, 2015
Page last updated: November 3, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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