What does teh stress path tell you about the history of a soil.
What does teh stress path tell you about the history of a soil.
(OP)
Hi,
I was wondering if someone could tell me what the stress path of a clay would tell you about its geological history? Also any examples of certain features of the stress path that show specfic history would be much appreciated
Thank You
I was wondering if someone could tell me what the stress path of a clay would tell you about its geological history? Also any examples of certain features of the stress path that show specfic history would be much appreciated
Thank You





RE: What does teh stress path tell you about the history of a soil.
RE: What does teh stress path tell you about the history of a soil.
Depending upon where you live and where you were educated, p' (horiz. axis for the stress path) may be defined differently.
As I was educated, and apparently Big H was also, p' is (sigma'1 + sigma'2 + sigma'3)/3. In a triaxial test, sigma'2=sigma'3, so this is usually seen as (sigma'1 + 2*sigma'3)/3.
At least in the US, p' is often? usually? defined as (sigma'1 + sigma'2)/2. If that's what you are dealing with, Big H's 1H:3V line would be 1H:1V.
DRG
RE: What does teh stress path tell you about the history of a soil.
RE: What does teh stress path tell you about the history of a soil.
In terms of geological history, an normally consolidated soil would be once that has not been stressed more then it has been now. A residual soil, formed from bedrock weathering, a soil placed from water deposits, etc, could be normally consolidated. An over consolidated soil could be a soil that was placed and then had the overlying soils eroded away, or could have been under a glacier and the glacier traveled over it and melted away, for two examples.