Longwall gate road stability in a steeply pitching thick coal seam with a weak roof
By: by Lance R. Barron and Matthew J. DeMarco.
Contributors: DeMarco, Matthew J.; United States. Bureau of Mines.
Series: Report of investigations -- 9580.; Report of investigations (United States. Bureau of Mines) -- 9580.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1995
Place of publication: [Washington, D.C.?]
Language: eng
Format: Microform
Number of pages: 33
Subjects: Gate roads (Mining) -- Wyoming.; Longwall mining -- Wyoming.; Ground control (Mining) -- Wyoming.
Notes: Distributed to depository libraries in microfiche.

Shipping list no.: 96-0482-M.

Includes bibliographical references (p. 15-16).

Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1996] 1 microfiche : negative.