settlement

[geotechniqa]

Hello my friends,
I am looking for a quick tool ,for example ,excel-sheet , for calculation of settlement of embankment on clayey soil just to have a quick felling on “what-if “ concerning the settlement of my embankment. Thanks a lot for support.

 

[BigH]

Wouldn't think that this would be too difficult for you to set up - you would understand it better. Need to take into account immediate settlements, overconsolidation ratio, stress increases - see Poulos and Davis for stresses beneath embankments.

 

[oldestguy]

I have used this approach for years. You will also need unit weights (damp as well as saturated). I broke my layer into foot thickness. Run all comps down until the added pressure from the embankment is 10 percent of existing and that can be plenty deep. For a wide embankment I use no distribution at all. You may have to make some assumptions as to pre-compression, etc. Many rough relationships are out there relating compressibility to moisture content, limits, etc. the older NAVFAC manuals had a lot of these.