Preconsolidation Pressure_Consolidation test results
Preconsolidation Pressure_Consolidation test results
(OP)
Hello,
Is there a any easy way to read preconsolidation pressure from the test result (xsl) format? I tried to draw a tangent line using excels "Add trendline " function but it didn't worked.
Is there a any easy way to read preconsolidation pressure from the test result (xsl) format? I tried to draw a tangent line using excels "Add trendline " function but it didn't worked.





RE: Preconsolidation Pressure_Consolidation test results
RE: Preconsolidation Pressure_Consolidation test results
f-d
¡papá gordo ain’t no madre flaca!
RE: Preconsolidation Pressure_Consolidation test results
RE: Preconsolidation Pressure_Consolidation test results
If I gave any indication that this was not a manual procedure, excuse me. For some reason, it appears that Mr. Oldestguy thinks I was referencing a digital proceedure.
The truth (as I see it) is the "determination" of Pp is open to interpretation. To interpret the point of maximum curvature, to interpret the tangent line, to bisect an angle, etc. Each of these manual interpretative steps can lead to a different conclusion. My practice is to take the consolidation data points and manually draw in the e-log-p curve then do the Pp interpretation. Then redo the entire process. You may find that you Pp values vary as a result of your interpretative process. Often the spread of your interpretative range is the direct consequence of sampling disturbance or laboratory precision.
I always consider this a manual process and hope I didn't suggest otherwise. If in doubt check the proceedures shown in the ASTM.
f-d
¡papá gordo ain’t no madre flaca!
RE: Preconsolidation Pressure_Consolidation test results
http://www.astm.org/DIGITAL_LIBRARY/JOURNALS/GEOTE...
There is also a paper in the EIGJ (that on line journal) about it - I have it somewhere and will, when I have time, try to find it.
RE: Preconsolidation Pressure_Consolidation test results
Senol and Saglaner "Determination of Preconsolidation Pressures with a new Strain-Energy - log strain Method". EJGE Paper Number 0015, Yr-2000.