Abstract
Longwall mining is a full-recovery coal-extraction technique that has gained recognition in the United States for its productivity and safety. However, several key considerations that have limited the further acceptance of the technology include: 1) the high capital costs for the equipment, 2) the dependency of the technique on room-and-pillar mining for panel development, and 3) the total economic performance and reserve configuration of the integrated mining system in the coal marketplace. This paper summarizes a research program dealing with the evaluation of innovative development schemes for longwall mining systems. Two microcomputer programs that were written to facilitate the comparison of different longwall panel layouts are presented.
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