Liquefaction Analysis
Liquefaction Analysis
(OP)
When performing a liquefaction analysis with simplified methods (NCEER etc.) using either SPT or CPT data, the analysis generally assumes free field conditions, ie. it does not take into account chanaged loading from a foundation or from a cut or fill over the ground in which the insitu testing was performed. Does anyone have any good references on how to model the changed loads using the simplified methods?
I know the loading would change the SPT or CPT data due to the change in confining pressures.
Thanks
I know the loading would change the SPT or CPT data due to the change in confining pressures.
Thanks





RE: Liquefaction Analysis
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RE: Liquefaction Analysis
RE: Liquefaction Analysis
RE: Liquefaction Analysis
In my case, I have a relatively heavily loaded mat foundation (about 4,000 psf). I can't apply this load uniformly to come up with new effective stresses because the load distribution changes with depth as well as from the center to the edge of the slab. I guess I can look at different cases varying the load for edge/slab/depth.
JDMM: I can't think of a reason why I would need to use FLAC or some other numerical model if I can vary the effective stresses as discussed above.
Thanks again