Dam Slope Stability Analysis-Sat. and Unsat. soil parameters
Dam Slope Stability Analysis-Sat. and Unsat. soil parameters
(OP)
I have completed a slope stability analysis on a water storage dam (40' fill, 3:1 side slopes, silty clay) using Geoslope, which uses finite element analysis and accounts for pore water pressure based on a seepage analysis. I have recieved a response back from reviewers stating that the soils should have different parameters based depending on saturation.
Therefore, here is my question:
Should a slope stability analysis on a dam with a consistant fill have different soil paramters (c and phi) for the saturated and unsaturated fill, based on the position of the phreatic line?
Thanks,
Therefore, here is my question:
Should a slope stability analysis on a dam with a consistant fill have different soil paramters (c and phi) for the saturated and unsaturated fill, based on the position of the phreatic line?
Thanks,





RE: Dam Slope Stability Analysis-Sat. and Unsat. soil parameters
RE: Dam Slope Stability Analysis-Sat. and Unsat. soil parameters
There may be some concern on the "rapid drawdown" stability, which you can likely model in Geoslope.
f-d
¡papá gordo ain’t no madre flaca!
RE: Dam Slope Stability Analysis-Sat. and Unsat. soil parameters
RE: Dam Slope Stability Analysis-Sat. and Unsat. soil parameters
RE: Dam Slope Stability Analysis-Sat. and Unsat. soil parameters
RE: Dam Slope Stability Analysis-Sat. and Unsat. soil parameters
The most critical issue is usually how high the phreatic/piezometric surface is under the downstream slope. Allow for uncertainty in the prediction!