Haswell, Charles Haynes, 1809- [from old catalog] · New York, Harper & brothers · leaf 328
of press-ure, c, draw c I, perpendicular to B C, cutting D n in o,which is the centre of gravity of the triangular sectionof the wall; also, draw o i DI respectively perpendicular™F f to D C, c I. Now ID i is to be considered as a bent lev-er, the fulcrum of which is D, the pressure of the… … 324 MECHANICS. Then cC = oi = lD = %a, and consequently T>i=z%DCz=%b;the weight of 1 foot in length of the wall == % abs, and the pressure atc of the same length of water = % a2 S; hence .QGGbx.&abs = .333 a / S /2 s X .5 a2 S; whence aJ~- = b, and &\/a~ = «• Note.—The embankment, BCD,…
Engineering · Mechanical engineering
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