run Atterberg limits. Replicate the LL on an oven-dried sample. Gauge if the LL was reduced by more than 25% (i.e., <75% of its original value). May be an OL or an OH? Data may be real.
These soils are highly prone to long term secondary compression - i.e., decades and decades!
f-d
ípapß...
just run a normally consolidated DDS with the sample hydrated to the liquid limit. Peak is FSS, residual is residual.
Not to take away from Tim's correlations; however. But, if you have a lab, run the test and record the value. I don't believe you will get there with a CU-bar or a...
ongoing settlement over decades certainly seems related to the problem. Seems a, "pop-type" failure, for sure.
Live load considerations?
Shoreline rebar deterioration and or inadequate cover from the onset.
Such a catastrophe!
f-d
ípapß gordo ainÆt no madre flaca!
100 percent of all design strength is obtained on saturated soils.
It's a fallacy to say that when soil gets wet it loses design strength.
Critical void ratio is a factor.
f-d
ípapß gordo ainÆt no madre flaca!
I think I'd use modulus for residual soils. There are a few exceptions, like the epi-Karst elastic silts. Then I'd use Cc, Cr, Cv, Pp and Po.
f-d
ípapß gordo ainÆt no madre flaca!
build an MSE (mechanically stabilized earth) retaining wall. Install a perforated pipe in the reinforced zone. Provide no wall drainage. Use clayey sand backfill and poor backfill. Instrument it.
Charge the perforated pipe with water.
Watch what happens.
f-d
ípapß gordo ainÆt no madre flaca!
somewhere behind the scene is the subject of critical void ratio.
I'm not sure I can easily contribute much more as this is a complicated topic that's seemingly an easy question.
f-d
ípapß gordo ainÆt no madre flaca!
you listen to, "Acid Jazz?" I kind of enjoy that subset too!
Yesterday, I had Brooklyn Funk Essentials on the audio and wondered. . .
Brooklyn Recycles was the tune. You may like it?
Google it on YouTube to get an idea of that group.
I also like Karl Denson and his various groups. I think...
Hi Azza, Yes, you're example is my approach. The shift is along the Line of Optimums, which is how you drew it.
There was a provisional ASTM on this topic. My former boss, Steven Poulous drafted it. He was a founder of a US firm, GEI.
f-d
ípapß gordo ainÆt no madre flaca!