Estimation of Pre-Consolidation Pressure
Estimation of Pre-Consolidation Pressure
(OP)
All,
I am doing some settlement analysis and trying to calculate the preconsolidation pressure (to check if the soil is over consolidated). I found typical pre-consolidation margin values in Coduto's book, however unable to get some kind of formulas to estimate it.
I came through google and unable to find the empirical co-relation between preconsolidation pressure with other soil parameters. But, unable to do so. If you guys have any idea, can you please share it?
Thank you in advance.
I am doing some settlement analysis and trying to calculate the preconsolidation pressure (to check if the soil is over consolidated). I found typical pre-consolidation margin values in Coduto's book, however unable to get some kind of formulas to estimate it.
I came through google and unable to find the empirical co-relation between preconsolidation pressure with other soil parameters. But, unable to do so. If you guys have any idea, can you please share it?
Thank you in advance.





RE: Estimation of Pre-Consolidation Pressure
RE: Estimation of Pre-Consolidation Pressure
RE: Estimation of Pre-Consolidation Pressure
Another way to estimate the preconsolidation pressure if you have a handle on your undrained shear strength is to use the relationship, effective O/B pressure = Undrained shear strength divided by 0.22 to 0.25 . . . many use 0.23 (see Terzaghi, Peck and Mesri. Knowing the this effective O/B pressure and your existing effective O/B pressure, you can determine the overconsolidation ratio.
RE: Estimation of Pre-Consolidation Pressure
RE: Estimation of Pre-Consolidation Pressure