Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Known history of roof bolting review and recommendations of Bureau of Mines regarding techniques of installing roof bolts; drilling; methods of tightening and anchoring bolts; dust hazard in drilling for roof bolting. (see also Min J (Lond) v 235 n 6017 Dec 15 1950 p 586-7)
Known history of roof bolting review and recommendations of Bureau of Mines regarding techniques of installing roof bolts; drilling; methods of tightening and anchoring bolts; dust hazard in drilling for roof bolting. (see also Min J (Lond) v 235 n 6017 Dec 15 1950 p 586-7)
Roof bolting in United States
U S Bur Mines -- Information Cir
Thomas, E. (Autor:in)
1950
8 pages
Report
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
| Engineering Index Backfile | 1950
Roof bolting at United States and lark mine
| Engineering Index Backfile | 1952
| Engineering Index Backfile | 1953
| Engineering Index Backfile | 1957
| Engineering Index Backfile | 1951