A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
200-ton pre-built headframe moved into position over shaft
Erection of permanent steel headframe for New Jersey Zinc Co over new Friedensville mine shaft near Bethlehem, Pa was performed by moving and setting old steel structure; last step in positioning of permanent headframe was lowering it over anchor bolts on foundation; this was done with 30 screw type jacks operated in unison. (see also Construction Methods and Equipment v 34 n 12 Dec 1952 p 88-90, 92)
200-ton pre-built headframe moved into position over shaft
Erection of permanent steel headframe for New Jersey Zinc Co over new Friedensville mine shaft near Bethlehem, Pa was performed by moving and setting old steel structure; last step in positioning of permanent headframe was lowering it over anchor bolts on foundation; this was done with 30 screw type jacks operated in unison. (see also Construction Methods and Equipment v 34 n 12 Dec 1952 p 88-90, 92)
200-ton pre-built headframe moved into position over shaft
Eng Min J
1952
4 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
200-ton pre-built headframe moved into position over shaft
Engineering Index Backfile | 1952
Headframe design and construction
| Engineering Index Backfile | 1932
Construction of headframe and surface plant
| Engineering Index Backfile | 1948
| British Library Conference Proceedings | 2011
| Trans Tech Publications | 2011