Stig Bernander has designed or been engaged in major civil engineering works such as bridges, dams, harbors, tunnels, dry docks, off-shore structures, buildings, underground storages and water supply structures in Sweden, Denmark, Norway, Poland, Monaco, Egypt, Saudi Arabia, India, Sri Lanka and Zimbabwe. After the large landslide in Tuve (Gothenburg, 1977), Stig Bernander began developing a finite difference model for slope stability analysis taking the deformation-softening of soft sensitive clays into consideration. In the model, the mean down-slope deformation in each element caused by normal forces is maintained compatible with the deformation generated by shear stresses.