San Francisco : Architect and Engineer, Inc · leaf 400
ort at the lowerend by casting stub H-sections into the concreteslab in the middle of the site where no pipe pileswere to be driven. Pouring the concrete slab in that part of thefoundation not to be supported on piles was doneas soon as excavation had been completed andbefore driving the steel… … General view offoundation opera-tions showingthe driving ofsteel caissons. ed from the concrete slab and advanced over thedeep foundation area on falsework piling drivenby a hammer working in hanging leads slungfrom a crane at ground level. The first and second exterior walls of the 15-story…
Architecture · Building
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