Adams, Henry · London, New York [etc.] Longmans, Green, and Co. · leaf 223
laced from 10 to 15 ft.apart, and \t there is only one principal strut in each set it should beplaced about | height of wall; if two, then at J and | with continuouswall pieces. There are two points to particularly observe in connection withfoundations—^the width and the depth. The width depends… … upon the load imposed by the wall or pier and the supporting power ofthe soil. The load is usually a simple matter of calculation, but the resist-ance is matter for judgment. The text-books give tables of safe loadsfor different soils, but the classification of the given soil has to be dis-covered…
Building · Structural analysis (Engineering)
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