A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Problems plague construction of New York World Trade Center
Report on difficulties faced by project backers and foundation contractors; Icanda Ltd of Canada is using slurry method to install cutoff walls around 3300 ft perimeter of site; these walls are 3 ft thick and 55 to 75 ft deep; method and equipment are conventional except for rock slicer and walking drill, made necessary by cutoff wall keyed 3 ft into rock; spacers are used to place rebar cages in cutoff wall trench; wide trench 10 ft deep is backfilled with lean concrete, and trenching buckets work through this material, as lean concrete easily spalls off good concrete in wall.
Problems plague construction of New York World Trade Center
Report on difficulties faced by project backers and foundation contractors; Icanda Ltd of Canada is using slurry method to install cutoff walls around 3300 ft perimeter of site; these walls are 3 ft thick and 55 to 75 ft deep; method and equipment are conventional except for rock slicer and walking drill, made necessary by cutoff wall keyed 3 ft into rock; spacers are used to place rebar cages in cutoff wall trench; wide trench 10 ft deep is backfilled with lean concrete, and trenching buckets work through this material, as lean concrete easily spalls off good concrete in wall.
Problems plague construction of New York World Trade Center
Eng News-Rec
Engineering News-Record ; 178
1967
Article (Journal)
English
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