elastic settlement
elastic settlement
(OP)
Hi
Is it truly unnecessary to compute elastic settlement in soils and rocks ? the argument my colleague gave me was that elastic settlement happens instantaneously while the concrete is poured and only consolidation settlement should be of concern
On the other hand what about rigid fresh rock mass with little to no discontinuities ? should one compute its elastic settlement either ?
thanks
Is it truly unnecessary to compute elastic settlement in soils and rocks ? the argument my colleague gave me was that elastic settlement happens instantaneously while the concrete is poured and only consolidation settlement should be of concern
On the other hand what about rigid fresh rock mass with little to no discontinuities ? should one compute its elastic settlement either ?
thanks





RE: elastic settlement
For unsaturated soils, the time frame for elastic compression can be, "Immediate." That said, there is also the "Creep" term, or the, "Time Rate Factor," C-sub-t. Depending on the elastic modulus you may want to consider this for both areal fills and loading from foundation elements?
How much creep can develop in the one month after all the elastic compression has occurred? I'd go with zero. How much creep can develop in the one year after elastic compression has occurred? I'd use 20 percent. For 30 years, I'd use 50 percent.
I refer you to CGPR (Virginia Tech, Center for Geotechnical Practice and Research) publication #2 for more information.
f-d
ípapß gordo ainÆt no madre flaca!
RE: elastic settlement
f-d, the Virginia Tech website looks interesting...
RE: elastic settlement
I've checked this CGPR , but as you may know i am out of the USA and can't afford to buy anything . Anyway what's your comment on rock elastic settlement ?
thanks
RE: elastic settlement
That's my comment, for what its worth.
f-d
p.s., I used the term, "Creep" to characterize the compression that can develop after the immediate compression. I'm not referring to horizontal consolidation response or the toothpaste-tube-type displacement. Sorry, if I got the OP off track. The term C-sub-t relates to both coarse- and fine-grained soils.
ípapß gordo ainÆt no madre flaca!
RE: elastic settlement
RE: elastic settlement
RE: elastic settlement
No for residential construction, I doubt I much worry about elastic compression of rock.
Sorry I wasn't more helpful. . .
f-d
ípapß gordo ainÆt no madre flaca!
RE: elastic settlement
RE: elastic settlement
RE: elastic settlement