Shield mechanics and resultant load vector studies
By: by Thomas M. Barczak and Robert C. Garson.
Contributors: Garson, Robert C.
Series: Report of investigations ;; 9027; Report of investigations (United States. Bureau of Mines) ;; 9027.
Publisher: Dept. of the Interior, Bureau of Mines
Published: 1986
Place of publication: Pgh. [i.e. Pittsburgh] Pa
Language: eng
Number of pages: 43
Subjects: Mine roof control.; Longwall mining.
Notes: Bibliography: p. 42.