Practical Designing of Retaining WallsD. Van Nostrand, publisher, 1873 - 47 ページ |
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adopted angle of repose Appendix application bank of earth bank slopes bisects the angle brickwork Bridges buttresses C. E. Illustrated calculation centre of gravity centre of pressure Civil Engineer clay cloth considerable construction Corps of Engineers counterforts cubic foot curvature curved batter designed determining diagrams dimensions drainage earth pressure embankment example formula friction Geometrical Drawing give HOLLEY horizontal resist Hypsometry Iron leverage litho lithographed plates masonry material maximum pressure ment method Military Engineers multiplied natural inclination natural slope Naval numerous engravings occurrence in practice overturn the wall plane of rupture PLYMPTON pressure exerted radius Railway ratio rectangular wall resist the pressure revetment revised and enlarged Screw Propulsion Steam Engine Steel strength structure supporting a bank surface Tables Telegraphy Theory thrust tion Treatise triangle of forces Trusses tween U. S. Army U. S. Navy Valve vertical wall weight wh²
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9 ページ - In considering the first theory, that of resistance to overturning, the easiest method of examining the question will be to take a simple example of a vertical rectangular wall, and ascertain what power it exercises to resist the pressure of water. The pressure of water upon any plane surface immersed is known to be equal to the area of that surface, multiplied by the depth of its centre of gravity below the level of the water and by the weight of a unit of water. Generally speaking, the unit adopted...