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Re: fem & caissons

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Lanny J. Flynn wrote:

> I haven't used Risa 3d, but piles can be modeled using horiz springs spaced
> at say 1ft vertically with the spring stiff based on the the soil mod the
> geotech gives you (or should give you).

This is what we are trying, I question how we should deal with the curved
surface of the round pile. Should all the spring stiff. be the same considering
the horiz. projected area of the pile or should the spring stiff. be reduced as
you travel around the 1/2 circumf. of the pile?