Rigid-body and elastic solutions to shield mechanics
By: by Thomas M. Barczak
Series: Report of investigations -- 9144; Report of investigations (United States. Bureau of Mines) -- 9144
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1987
Place of publication: Pittsburgh, Pa
Language: eng
Format: Microform
Number of pages: 20
Subjects: Mine roof control -- Testing; Longwall mining
Other titles: Shield mechanics
Notes: Bibliography: p. 8

Microfiche. Washington, D.C. : U.S. G.P.O. 1991. 1 microfiche : negative.