preconsolidation pressure

[Joachim11]

Does anyone have a copy of this paper.
Pacheco Silva, F. (1970). A new graphical
construction for determination of the pre-consolidation
stress of a soil sample. Proceedings 4
th Brazilian
Conference Soil Mechanincs and Foundation
Engineering, Rio de Janeiro, 225-232

 

[GeoEnvGuy]

No I do not have that paper but do know that you can use a multitude of methods. Below is a image from "Accuracy of determining pre-consolidation pressure from laboratory tests" Umar 2017

 

[CarlB]

His method is described in this paper:

https://www.researchgate.net/public...dation_stress_evaluation_from_oedometer_tests

 

[EireChch]

Intersting Carl B, I think most oedometers we use are Incremental Loading, and p'c is assessed based on the casagrande method. Burland 1990 seems the best based on the above, I have never seen it used in practice. interested to hear your experience.

 

[BigH]

There is a method of plotting log e vs log p' . . . then the intersection of the two lines is the preconsolidation pressure - there is a paper that I have somewhere but you should be able to find on the net.