A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Record tunneling through rock
Record rate of 1,332 in. in 1440 min set in Tunnel No. 4 North Poudre Canal by crews of G.L.Tarlton Contracting Co; thirteen 10-ft rounds drilled, loaded, blasted and mucked during record day.
Record tunneling through rock
Record rate of 1,332 in. in 1440 min set in Tunnel No. 4 North Poudre Canal by crews of G.L.Tarlton Contracting Co; thirteen 10-ft rounds drilled, loaded, blasted and mucked during record day.
Record tunneling through rock
Min World
Mining World ; 14
1952
2 pages
Article (Journal)
English
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