Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drilled-pier cofferdam for building
Cofferdam 20 ft below ground water, is unusual structural feature of addition to home office building of National Old Line Insurance Co, in Little Rock, Ark; cofferdam was constructed by boring 134 holes 30 in. in diam at 3 ft centers around periphery of building lot; holes were filled with reinforced concrete to make them act as piers; then back-up piers 15 in. in diam were placed in same way in interstices between 30 in. piers; cofferdam is designed to withstand hydrostatic and earth pressure of 2015 psf; cofferdam and subfloor 2 ft thick form essentially watertight chamber; to resist hydrostatic uplift of 1200 psi on floor, concrete anchors were drilled into underlying rock to supplement dead load.
Drilled-pier cofferdam for building
Cofferdam 20 ft below ground water, is unusual structural feature of addition to home office building of National Old Line Insurance Co, in Little Rock, Ark; cofferdam was constructed by boring 134 holes 30 in. in diam at 3 ft centers around periphery of building lot; holes were filled with reinforced concrete to make them act as piers; then back-up piers 15 in. in diam were placed in same way in interstices between 30 in. piers; cofferdam is designed to withstand hydrostatic and earth pressure of 2015 psf; cofferdam and subfloor 2 ft thick form essentially watertight chamber; to resist hydrostatic uplift of 1200 psi on floor, concrete anchors were drilled into underlying rock to supplement dead load.
Drilled-pier cofferdam for building
Civ Eng (NY)
Engstrom, H. (Autor:in) / Oates, R. (Autor:in)
1967
2 pages
Aufsatz (Zeitschrift)
Englisch
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