estimation of winkler foundation modulus
estimation of winkler foundation modulus
(OP)
thread256-151955: Winkler type elemts - line support stiffness
Hello.
There was this thread that gave a very simple formula for estimation of winkler foundation modulus as "K = E*(1/B+1/L+1/h)".
K : Winkler modulus [kN/m3]
E : average Young modulus of the soil [kN/m2]
B : width of the strip [m]
L : length of the strip [m]
h : limit depth of the soil [m]
I am not an expert on this, but I was just curious where this formula comes from, as in a paper/textbook reference, as I can only seem to find this approach on the aforementioned thread.
Also, how does one "know" the limit depth of the soil?
All advice is welcome =)
eponalank
Hello.
There was this thread that gave a very simple formula for estimation of winkler foundation modulus as "K = E*(1/B+1/L+1/h)".
K : Winkler modulus [kN/m3]
E : average Young modulus of the soil [kN/m2]
B : width of the strip [m]
L : length of the strip [m]
h : limit depth of the soil [m]
I am not an expert on this, but I was just curious where this formula comes from, as in a paper/textbook reference, as I can only seem to find this approach on the aforementioned thread.
Also, how does one "know" the limit depth of the soil?
All advice is welcome =)
eponalank





RE: estimation of winkler foundation modulus
An expert is a man who has made all the mistakes which can be made in a very narrow field
RE: estimation of winkler foundation modulus
336.2R-88, "Suggested Analysis and Design Procedures for Combined Footing and Mats".
It's a bit dated, for sure. But, it might help out a little.
RE: estimation of winkler foundation modulus
http://www.iasmirt.org/iasmirt-2/SMiRT18/K06_3.pdf
The equation you referred is likely, very simplified for a reservoir sitting in a homogeneous soil (I may be wrong). For building structures, it may be not applicable.
RE: estimation of winkler foundation modulus
Indeed the element in consideration was a rod rather than a slab, so probably the equation above is not applicable.
Thank you,
eponalank