Abstract
A simplified method for evaluating the undrained shear behavior of Ko-consolidated cohesive soils has previously been proposed. This method combined derived soil parameters proposed by KAMEI, and the elasto-viscoplastic model proposed by SEKIGUCHI and OHTA. For several strain-controlled undrained triaxial tests of Ko-consolidated cohesive soils, reasonable agreements have already been obtained between observed and computed results.
To confirm the applicability of the proposed method for practical problems in geotechnical engineering, simplified deformation analysis with idealized assumptions for deep clay foundation under embankment has been carried out. The model simulations are compared with the well-documented case history of the Kanda trial embankment. Reasonable agreement is obtained between measured and computed values for settlement and excess pore pressure with elapsed time. The principles of the proposed method are useful for evaluating deformation characteristics for foundation under embankment. Future refinements will be possible with the acquisition of additional data.
