Title

Design Considerations for Mining Thick Seams and Seams Lying in Close Proximity to One Another

Abstract

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.

Meeting Name

17th U.S. Symposium on Rock Mechanics

Department(s)

Mining and Nuclear Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1976 American Rock Mechanics Association (ARMA), All rights reserved.

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