ABSTRACT
P.K. BANERJEEa, A.S KUMBHOJKARb and N.B. YOUSIF` °Department of Civil Engineering, State University of New York at Buffalo,
Buffalo, New York, USA bDepartment of Civil and Architectural Engineering, University of Miami,
Coral Gables, Florida, USA `Department of Civil Engineering, University of Basra, Basra, Iraq
ABSTRACT
This chapter describes further developments of an anisotropic soil model and a finite element (FE) analysis of the field test excavation in Welland Clay performed using the developed anisotropic soil model. It presents the details of the model, the FE formulation, and the transient effective stress stability analysis, and compares the FE results with the field measurements. The analysis reflects the post-excavation decrease in the factor of safety with time and predicts the failure of the slope along the observed failure surface. The parametric study shows that the time to failure is a function of the pore pressure boundary conditions at the excavation surface which affects the transient factor of safety.
