A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Three tunnels driven by full-face drilling with detachable bits
Tunnels totaling 20,131 ft in length are part of 70 mi Conchas Irrigation Canal, principal features of U S Bureau of Reclamation's Tucumcari project in Quay County, N Mex; tunnels are horseshoe shaped, 11 ft 6 in. in diam, and concrete lined; notes on construction methods and equipment used.
Three tunnels driven by full-face drilling with detachable bits
Tunnels totaling 20,131 ft in length are part of 70 mi Conchas Irrigation Canal, principal features of U S Bureau of Reclamation's Tucumcari project in Quay County, N Mex; tunnels are horseshoe shaped, 11 ft 6 in. in diam, and concrete lined; notes on construction methods and equipment used.
Three tunnels driven by full-face drilling with detachable bits
Construction Methods
Construction Methods ; 25
1943
Article (Journal)
English
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