Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Three types of steel timbering for tunnels
Illustrated description of steel tunnel support of two piece sets of H-beams spaced 2 ft and 4 ft c to c with 0.20 in. steel liner plate and special water bar lagging; 4 piece sets for double track tunnel consist of 8 in. posts, 31 lb W F beams on 18- and 30-in. centers, and 8 in., 35 lb W F arch ribs; liner for 125 ft reinforced concrete tunnel is 16 × 1/4 × 37 11/16 in. plate on 5 in., 10 lb I beams spaced 16 in. c to c.
Three types of steel timbering for tunnels
Illustrated description of steel tunnel support of two piece sets of H-beams spaced 2 ft and 4 ft c to c with 0.20 in. steel liner plate and special water bar lagging; 4 piece sets for double track tunnel consist of 8 in. posts, 31 lb W F beams on 18- and 30-in. centers, and 8 in., 35 lb W F arch ribs; liner for 125 ft reinforced concrete tunnel is 16 × 1/4 × 37 11/16 in. plate on 5 in., 10 lb I beams spaced 16 in. c to c.
Three types of steel timbering for tunnels
Construction Methods
1948
3 pages
Aufsatz (Zeitschrift)
Englisch
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