A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Crane uses "fingertip" in tunnel
Extension of 2-ft length, welded to 8-ton hydraulic crane telescoping boom enabled speeding up of erection of supporting steel in New York's new Sixth Avenue subway tunnel; stub made possible setting of cap beams with only 8 in. clearance between top of steel and roof of tunnel.
Crane uses "fingertip" in tunnel
Extension of 2-ft length, welded to 8-ton hydraulic crane telescoping boom enabled speeding up of erection of supporting steel in New York's new Sixth Avenue subway tunnel; stub made possible setting of cap beams with only 8 in. clearance between top of steel and roof of tunnel.
Crane uses "fingertip" in tunnel
Eng News -- Rec
Engineering News-Record ; 172
1964
Article (Journal)
English
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