Design practices for multiple-seam room-and-pilllar mines.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9403, 1994 Jan; :1-44
Effective mine planning and design is essential for avoiding ground problems related to multiple-seam interactions. The U.S. Bureau of Mines, as part of its mission to improve coal conservation and utilization, has been investigating multiple-seam room-and-pillar designs to increase coal recovery and reduce interactions between operations. This report presents design practices when using room-and-pillar methods in the multiple-seam environment and is a review of relevant literature on multiple-seam ground control, mine planning, and mine design. Its objective is to provide mine planners and operators with practical guidelines and information to design sale and productive mines.
Design-criteria; Strata-control; Coal-seams; Subsidence; Coal-mining; Room-and-pillar-mining; Underground-mining; Mineral-industries
Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
NTIS Accession No.
Other Occupational Concerns
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9403