I am trying to include the effects of embedment on a rectangular footing subject to high moments and shear forces. The shear and moment acting on the footing are resulting in soil pressures in excess of allowable and I think the analysis model is too conservative by not considering the lateral resistance of the soil pressure surrounding the footing. I have not been able to include the lateral resistance of the soil in the Foundation Advanced model using the mat option. I am currently using STAAD to model the foundation with springs and would like to know if anyone else has encountered this design situation.
Thank you for your response.