Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Description of how stilting of wood props prevented damage to steel girders and to props supporting them, at Aldwarke Main colliery; stilts consist of two 3 by 3-in. angle irons, held to lower part of prop by clamps, leaving 18 in. between base of prop and foot block; these yielding supports have beneficial effect on roadway conditions. (see also Colliery Guardian v 162 n 4182 Feb 21 1941 p 175; Iron and Coal Trades Rev v 142 n 3809 Feb 28 1941 p 269)
Description of how stilting of wood props prevented damage to steel girders and to props supporting them, at Aldwarke Main colliery; stilts consist of two 3 by 3-in. angle irons, held to lower part of prop by clamps, leaving 18 in. between base of prop and foot block; these yielding supports have beneficial effect on roadway conditions. (see also Colliery Guardian v 162 n 4182 Feb 21 1941 p 175; Iron and Coal Trades Rev v 142 n 3809 Feb 28 1941 p 269)
Economy of supports in mine roadways
Colliery Eng
Dodd, T. (Autor:in)
Colliery Engineering ; 18
1941
2 pages
Aufsatz (Zeitschrift)
Englisch
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