Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Technique of smooth blasting is being used to excavate for underground combat operations center at Cheyenne Mountain, Colo; 2 entrance tunnels give access to 6 chambers, 450-ft long, 45-ft wide and 60-ft high; vertical jointing prompted cross section of tunnel with arch or barrel roof instead of rectangular section; blasting and drilling pattern has objective of protecting solid rock from secondary stresses.
Technique of smooth blasting is being used to excavate for underground combat operations center at Cheyenne Mountain, Colo; 2 entrance tunnels give access to 6 chambers, 450-ft long, 45-ft wide and 60-ft high; vertical jointing prompted cross section of tunnel with arch or barrel roof instead of rectangular section; blasting and drilling pattern has objective of protecting solid rock from secondary stresses.
Cheyenne mountain project
Can Min J
Smith, R. (Autor:in)
1962
4 pages
Aufsatz (Zeitschrift)
Englisch
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