i am doing a newmark sliding block analysis ("Jibson 2007") for a slope to estimate the lateral displacement under seismic conditions. To do this, i need to determine the yield acceleration. This is usually done by tweaking the acceleration coefficient in Slope/W until the FoS is 1.0. i have some liquefiable sand.
For this analysis, should i be using liquefied parameters for the sand (Su approx 10kPa) or conventional parameters (phi'34 deg)?
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