Duncan, J. (John), d. 1941 · London, MacMillan and co., limited · leaf 300
he construction is shown for obtaining the stresson a section OK (p. 261). ONis perpendicular to OK, NP andMP are parallel respectively tothe principal axes of stress OBand OA, and PO is the stresson OK. P lies always on thecircumference of the circle de-scribed on MN as diameter.The angle of… … *+*From Fig. 294, we have =AzA (4) A+A Pressure on retaining walls by Rankines theory. The foregoing principles may be applied to give a simple graphical solution for the Y earth pressure on retaining walls. In Fig. 295 XY isthe vertical earth face of aretaining wall, the earth sur-face being…
Mechanics
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