Skempton's Pore Pressure Parameters | Soil Mechanics

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In this video I have talked about the stress strain and volume change relationship for clay and sands. Also I have talked about the Skempton's pore pressure parameters and soil liquefaction.
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[@anch8064]

You explain really well, comparable to world class Universities. Anyone with basic soil mechanics will understand the concepts. Just if your writing is legible, I think it will be most hit video.!! Thanks for uploading it.

[@sidiquebabarali4558]

can we say there is a cycle of loose sand becoming dense and dense sand becomes loose by application of load, taking place as time passes.

[@miniproject7893]

As you told that with increase in pressure for OC clays it dilates .I want to know what happens to its strength.

[@shivatribe6297]

Nyc

[@harshadadhanwate6213]

For NC soil volume decreases and we are not letting the water to go out.. then there will be negative pore pressure develops how it is positive...

[@riteshkurar]

No, rather by testing under undrained conditions, we are not allowing the water to ooze out from the voids ie the rate of loading is greater than rate of dissipation of excess pore water pressure. Thus, any change in total stress in 2nd stage under undrained conditions is taken by pore water. Thence, A is positive for NC clays.

[@GaneshKumar-co6ye]

U told that by stopping the drainage one can stop the volume increase of overconsolidated soil. How it is possible?? And how volume increase if we allowed drainage ?? U told it in video at 3:21 minutes

[@sayakray8540]

If both volume increase and water drainage is absent then only shear strains exist in the specimen. Thus only shear stresses will develop.

[@abhijeetgupta40]

at 0:28 you said that the test is consolidated drained test while at 3:28 you're saying that drainage is not allowed and then you explained about the pore water pressure being positive or negative. I don't get it.