Modelling help

Hi everyone.

I am trying to model how a load evolves on a slope (glacial load), the way to model it can be as a condition of hydrostatic stress with dynamic evolution (from 1 to 0 in the multiplier) or as an elastic material decreasing the height of the material in the cycles. The first one, I do not know how you could establish a pgz edge condition efficiently in the model and the second one generates that the displacements are concentrated in the ice so it is not very useful to analyze the behaviour of the slope.

Any suggestions on how you could approach it?

Thanks.