A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Washington's Highway Dept which recognizes "PAR" as " Project Adequate Roads" is building 5 1/2 mi of highway near Spokane; 560,000 cu yd material, both dirt and rock, must be removed; solid granite encountered in cuts was drilled with Thor hammer for shooting; problem of loading rock units was solved by 25 yd gravity feed hopper built of plate steel; drilling and shooting was handled by compressors and Ingersoll-Rand guns.
Washington's Highway Dept which recognizes "PAR" as " Project Adequate Roads" is building 5 1/2 mi of highway near Spokane; 560,000 cu yd material, both dirt and rock, must be removed; solid granite encountered in cuts was drilled with Thor hammer for shooting; problem of loading rock units was solved by 25 yd gravity feed hopper built of plate steel; drilling and shooting was handled by compressors and Ingersoll-Rand guns.
Shooting PAR
Excavating Engr
Bixby, F.S. (author)
Excavating Engineer ; 47
1953
Article (Journal)
English
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