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Mining Publication: Using Site Case Histories of Multiple Seam Coal Mining to Advance Mine Design
Keywords: Mine design Multiple seam mining Numerical modeling
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: August 2003
Authors: JL Ellenberger, FE Chase, C Mark
Conference Paper - August 2003
Download PDF Document (0.54 MB)
NIOSHTIC2 Number: 20023431
In: Peng SS, Mark C, Khair AW, Heasley KA, eds. Proceedings of the 22nd Intl Conf on Ground Control in Mining. Morgantown, WV: West Virginia University, 2003 Aug; :59-64
The nature of competition in the coal market tends to deplete the most favorable coal reserves first and forces subsequent development of mines in more extreme ground conditions, such as those associated with multiple-seam mining. In fact, 70% of U.S. coal reserves are in multiple-seam situations. The National Institute for Occupational Safety and Health (NIOSH) is conducting research to develop mine design algorithms that will result in safer multiple-seam mines. This paper presents an overview of multiple-seam issues in the central Appalachian coalfields. To date, more than 50 case histories have been analyzed from 20 operating mines in eastern Kentucky, western Virginia, and southern West Virginia. Each case history is classified according to the degree of multiple-seam interaction, ranging from no apparent interaction to severe interaction with direct impacts on mine safety and resource recovery. The case histories are also examined with regard to amount and geologic characteristics of interburden and overburden, and design stability factors. The sequence of mining has also been found to be critical when the lower seam is fully extracted. This paper compares current case histories to traditional rules of thumb. In addition, two situations were modeled using LAMODEL software. LAMODEL has been upgraded to import pillar grids and topographic data from AutoCAD files. The cases presented demonstrate vertical stress capabilities of LAMODEL.
Image of publication Using Site Case Histories of Multiple Seam Coal Mining to Advance Mine DesignConference Paper - August 2003
Download PDF Document (0.54 MB)
NIOSHTIC2 Number: 20023431
In: Peng SS, Mark C, Khair AW, Heasley KA, eds. Proceedings of the 22nd Intl Conf on Ground Control in Mining. Morgantown, WV: West Virginia University, 2003 Aug; :59-64
See Also
A Case Study of Multi-Seam Coal Mine Entry Stability Analysis with Strength Reduction Method
Critical Review of Numerical Stress Analysis Tools for Deep Coal Longwall Panels Under Strong Strata
Exploration of Limestone Pillar Stability in Multiple-level Mining Conditions Using Numerical Models
Multiple-Seam Mining in the United States: Background
Numerical Model Calibration for Simulating Coal Pillars, Gob and Overburden Response
Numerical Modeling Procedures for Practical Coal Mine Design
Numerical Simulation of Roof Cavings in Several Kuzbass Mines Using Finite-difference Continuum Damage Mechanics Approach
Proceedings: New Technology for Ground Control in Multiple-seam Mining
The State-of-the-Art in Coal Pillar Design
Technology News 443 - Design Practices for Multiple-Seam Room-and-Pillar Mines
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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