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Showing posts from March, 2019

Rehbann's / Poncelets Theory

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Rebhann (1871) gave this graphical procedure for locating the slip plane and determining the total active earth pressure according to Coulomb’s wedge theory.   Procedure:- 1) Draw A retaining wall having height H i.e. AB 2) Draw three lines   Ground Line ( ß @ with horizontal)                                   Failure Line ∅                                     Earth pressure line  Ψ   3) Through point A Draw a line parallel to Ψ   line which cuts BD line at point C. 4) Through C draw perpendicular line CE which cuts an arc at E. 5) Join BE line consider BE as a radius and B as a center draw an arc through E       which cuts at point F on BD line. Through F draw a line parallel to  Ψ line which      ...

Active earth pressure, passive earth pressure and at rest earth pressure

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Active earth pressure, passive earth pressure and at rest earth pressure