A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Concreting at Mather "B" mine
Mixing concrete on surface at Mather "B" mine at Ishpeming, Mich, and pumping it 4800 ft down shaft through sixth level, to its position behind slusher drift forms; use of 3/4-yd capacity pneumatic placers in tandem; minimum thickness of concrete drift lining is one foot; no reinforcing bars used; collapsible steel forms hold and shape concrete in drifts; net advance is 18 ft per day for each set up of forms.
Concreting at Mather "B" mine
Mixing concrete on surface at Mather "B" mine at Ishpeming, Mich, and pumping it 4800 ft down shaft through sixth level, to its position behind slusher drift forms; use of 3/4-yd capacity pneumatic placers in tandem; minimum thickness of concrete drift lining is one foot; no reinforcing bars used; collapsible steel forms hold and shape concrete in drifts; net advance is 18 ft per day for each set up of forms.
Concreting at Mather "B" mine
Min World
Mining World ; 14
1952
2 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Sinking and concreting deep mine shaft
Engineering Index Backfile | 1919
Shotcreting, concreting at Climax Molybdenum's Henderson mine
| Tema Archive | 1992