A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hydraulic arm digs tunnel, moves muck to belt
Operation of hoe-like hydraulic excavator, built into contractor-designed shield, used for digging 12-ft diam sewer tunnel 160 ft below streets of downtown Seattle, Wash; to bore through hard, compacted silt rig attacks face with pick or blades as 17 jacks shove shield with 750-ton pressure.
Hydraulic arm digs tunnel, moves muck to belt
Operation of hoe-like hydraulic excavator, built into contractor-designed shield, used for digging 12-ft diam sewer tunnel 160 ft below streets of downtown Seattle, Wash; to bore through hard, compacted silt rig attacks face with pick or blades as 17 jacks shove shield with 750-ton pressure.
Hydraulic arm digs tunnel, moves muck to belt
Construction Methods Equipment
1968
3 pages
Article (Journal)
English
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Hydraulic dredge digs at deeper depths
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