It's a combi-wall, so tubular piles with sheet piles. We will be able to get a set into the rock with the tubes but I am after some info on how i can model a weak sandstone layer as a soil for the last metre or so.
I am undertaking the analysis of a Sheet pile combi-wall. The site is underlain by a weak layer of sandstone and I wish to model the wall as being driven in 1 metre into this layer to act as a keyed toe. I am looking for some information on how i can correlate a phi and c value for weak...