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Tunnels: Machine Excavation-Rate of Progress-Machine Data
Information on 20 machine-bored water tunnels constructed by the Bureau of Reclamation is presented graphically and pictorially. Machine data, rates of progress, tunnel profiles, and rock types and strengths are given for each tunnel. The bored diameters of these tunnels varied from 9 to 21 feet.
Tunnels: Machine Excavation-Rate of Progress-Machine Data
Information on 20 machine-bored water tunnels constructed by the Bureau of Reclamation is presented graphically and pictorially. Machine data, rates of progress, tunnel profiles, and rock types and strengths are given for each tunnel. The bored diameters of these tunnels varied from 9 to 21 feet.
Tunnels: Machine Excavation-Rate of Progress-Machine Data
R. S. Sinha (Autor:in)
1986
48 pages
Report
Keine Angabe
Englisch
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