Design Considerations for Mining Thick Seams and Seams Lying in Close Proximity to One Another
According to the Project Independence blueprint, a 270 percent increase in coal production is expected from western coal fields compared to an increase of 100 percent for the nation as a whole. Apart from thick seams, a common feature of many western coal fields is the occurrence of multiple seams that lie in close proximity to one another, and present difficult mining problems that have not been encountered in other U. S. coal fields. A number of thick seam mining methods have been successfully tried abroad; notably among them are multi-pass longwall mining with or without packing, room and pillar slicing with hydraulic sandstowing and sublevel caving. This paper describes the general features of these methods.
J. W. Wilson et al., "Design Considerations for Mining Thick Seams and Seams Lying in Close Proximity to One Another," Proceedings of the 17th U.S. Symposium on Rock Mechanics, American Rock Mechanics Association (ARMA), Jan 1976.
17th U.S. Symposium on Rock Mechanics
Article - Conference proceedings
© 1976 American Rock Mechanics Association (ARMA), All rights reserved.
01 Jan 1976