Soil properties
Soil properties
(OP)
Hi everyone
Could somebody please help me out in defining the following:
Submerged density
Drained and undrained stress
and where are they used?
Could somebody please help me out in defining the following:
Submerged density
Drained and undrained stress
and where are they used?





RE: Soil properties
[Weight of soil + Weight of water(density of water at a certain temperature/volume of voids)]/volume of soil and voids
That's all from Soil Mechanics and Engineering Practice, Terzaghi and Peck; an old book but I believe the basics are still good.
RE: Soil properties
"Drained" and "undrained stress" are also terms that don't quite fit conventional usage, and out of context, their meanings aren't obvious to me. I'd guess they mean "effective stress" and "total stress." Effective stress is the unifying concept of soil mechanics. It governs shear strength, compressibility, elastic properties, etc. You should probably find an undergrad soil-mechanics text.
Bon chance!
DRG
RE: Soil properties
recalling that effective stress is total stress minus pore water pressure.
My disclaimer is that I'm not a geotechnical engineer so I stand to be corrected, I just dug out my text book when I read this post because the terms sounded familiar, but I couldn't remember either.