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A platform for research: civil engineering, architecture and urbanism
Historical background of headgears erected on South African fields; factors which affect design; features of number of selected examples of steel headgears; concrete shaft surface structures dealt with under 2 categories of headgears and towers with descriptions and illustrations of selected examples of each type; relative merits of steel and concrete for headgear construction. (See also - n 5281 July 5 p 17-28)
Historical background of headgears erected on South African fields; factors which affect design; features of number of selected examples of steel headgears; concrete shaft surface structures dealt with under 2 categories of headgears and towers with descriptions and illustrations of selected examples of each type; relative merits of steel and concrete for headgear construction. (See also - n 5281 July 5 p 17-28)
Vertical shaft headgears
Colliery Guardian
Backeberg, A.C. (author)
Colliery Guardian ; 205
1962
5 pages
Article (Journal)
English
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