A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Boilerplate, thick concrete complicates road drain job
Pavement from 30 to 42-in. thick had to be blasted to install new drainage system under San Diego, Calif, grade separation structure; 60% gelatin dynamite was used and charge varied from 2/3 to 1 lb per hole; spacing between successive charges was 12 to 15 in.; wellpoints were put down 2 ft from each side of ditch line.
Boilerplate, thick concrete complicates road drain job
Pavement from 30 to 42-in. thick had to be blasted to install new drainage system under San Diego, Calif, grade separation structure; 60% gelatin dynamite was used and charge varied from 2/3 to 1 lb per hole; spacing between successive charges was 12 to 15 in.; wellpoints were put down 2 ft from each side of ditch line.
Boilerplate, thick concrete complicates road drain job
Eng News-Rec
Engineering News-Record ; 145
1950
Article (Journal)
English
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