A practical treatise on foundations, explaining fully the principles involved : with descriptions of all of the most recent structures, accompanied by numerous drawings ... (1893)
Patton, William Macfarland, 1845-1905 · New York : John Wiley · leaf 82
58 A PRACTICAL TREATISE ON FOUNDATIONS. … Fig. 4.— Cross-section of Retaining-wall. Prism of Earth Pressure. Resultant of Earth Pressure. EO — surface of ground ; 0 = angle of slope of ground; <p' = “ “ repose ; sab = area of base of earth prism ; as — x = vertical side of sab ; sc — x cos 6 = altitude of “ p\ cos 0 — 4/cos2 0 — cos2 cp ab…
Foundations
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