Avoiding Anchorage problems with resin-grouted roof bolts
By: by Howard C. Pettibone.
Series: Report of investigations ;; 9129; Report of investigations (United States. Bureau of Mines) ;; 9129
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1987
Place of publication: Pittsburgh, Pa
Language: eng
Number of pages: 28
Subjects: Mine roof bolts, Resin.