SPT number and soil density relation ??
SPT number and soil density relation ??
(OP)
I would like to know the relation between SPT number and soil density.
Many thanks for your help.
Many thanks for your help.
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SPT number and soil density relation ??
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SPT number and soil density relation ??SPT number and soil density relation ??(OP)
I would like to know the relation between SPT number and soil density.
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RE: SPT number and soil density relation ??
I don't think there is a 1:1 correlation (with a formula to calc it), though. I've only seen ranges: SPT = 10 to 30, is typical sand, angle = 30 to 40.
RE: SPT number and soil density relation ??
RE: SPT number and soil density relation ??
RE: SPT number and soil density relation ??
RE: SPT number and soil density relation ??
0-10 Loose
10-30 Medium Dense
30-50 Dense
>50 Very Dense
I dont know if you could make any closer corellation than that without seeing a grain size curve or doing a relative density test.
RE: SPT number and soil density relation ??
RE: SPT number and soil density relation ??
RE: SPT number and soil density relation ??
It's interesting that with all the research done, all the fancy equipment we have today, and all the brainpower that has gone into geotechnical engineering, we still use the concepts of the pioneers (Terzaghi, Peck, Casagrande, et al).
While the SPT is related to relative density, there has been much correlation done with the small dynamic cone penetrometer (Sowers Method) and in-place density. This should be done as a site-specific correlation due to the variable nature of soils, and really only works well in the upper 5 to 7 feet because of manual equipment handling.
RE: SPT number and soil density relation ??
RE: SPT number and soil density relation ??
RE: SPT number and soil density relation ??
RE: SPT number and soil density relation ??