San Francisco : Architect and Engineer, Inc · leaf 394
ype of foundation best suit-ed to the concentrated loads, three kinds of sup- ports were considered, namely, precast concretepiles, large concrete cylinders of the caisson typeand steel tubes to be driven with open bottomsand later emptied so they could be filled with con-crete. In comparing and… … SEPTEMBER, 1949 TELEPHONE BUILDING on close spacing and with the aid of jets mightdisturb the foundation balance temporarily, withan unknown effect on amount of ultimate settle-ment. The next type to be abandoned was the largeconcrete caissons. These would concentrate load-ings to a higher total…
Architecture · Building
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