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lateral earth pressure diagrams for sheet pilesHelpful Member! 

Guest (Visitor) (OP)
10 Feb 01 19:08
i have a sheet pile to design but i am having difficulty developing the lateral earth pressure diagram.  i have a granular soil above the dredge line and a cohesive soil with a phi angle below the dredge line.  what does the earth pressure diagram look like?  thanks
visitor (Aeronautics)
1 Dec 01 6:10
You can use the design procedure given by the Piling Hand book released by the
British Steel SUpplier - CORUS for design of sheet piles.
ishvaaag (Structural)
2 Dec 01 11:25
You can also establish the diagram pressures throuhg a sheet available free at the Mathcad 2000 collaboratory site, civil engineering folder.
IMC (Geotechnical)
10 Dec 01 0:58
why did you used the free earth method to calculated to lateral
pressure diagram that its simplify to develop and also its conservative.
Helpful Member!  chetu (Structural)
4 Jan 02 20:43
I have a concrete retaining wall with inclined back and inclined backfill (saturated). I want to know (Apprroximately or exctly) the point of application of lateral pressure on the inclined back of wall, it's inclination with the horizontal.
ishvaaag (Structural)
5 Jan 02 8:21
Chetu, your question looks more simple in appearance than it is. You will be modeling Earth Push, and if we continue using the procedures derived by Coulomb is because in 3 centuries we have not been able for something as general show useful results in practice. Then, if you admit some -reasonable, conservative- internal angle of friction and some specific weight for your saturated soil, you can derive the active push you want by Coulomb's method either by closed form formulation (the case would be covered for example by our spanish NBE AE 88 provisions) or directly by analysis of equilibrium in the wedges behind the wall. I have posted a sheet in the Mathcad Collaboratory that would permit such analysis for any analytical backfill surface.

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