Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drilling pilot tunnel in Wyoming
Rattlesnake Mountain Pilot Tunnel, Wyo, is 8 ft in diam and 3440 ft long, located at crown of proposed 32-ft diam highway tunnel; total excavation for tunnel alone was 8190 cu yd; every 250-ft room was drilled for roll over car pass for switching shuttle cars; drilling teams used two Atlas Copco BBC 22 rock drills with Sandvik Coromant drill steels; mucking was done with Eimco 21 and Gardner Denver 14 loaders.
Drilling pilot tunnel in Wyoming
Rattlesnake Mountain Pilot Tunnel, Wyo, is 8 ft in diam and 3440 ft long, located at crown of proposed 32-ft diam highway tunnel; total excavation for tunnel alone was 8190 cu yd; every 250-ft room was drilled for roll over car pass for switching shuttle cars; drilling teams used two Atlas Copco BBC 22 rock drills with Sandvik Coromant drill steels; mucking was done with Eimco 21 and Gardner Denver 14 loaders.
Drilling pilot tunnel in Wyoming
Western Construction
Western Construction ; 32
1957
2 pages
Aufsatz (Zeitschrift)
Englisch
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