STABILITY OF REINFORCED EMBANKMENT OVER SOFT COHESIVE FOUNDATION ---PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON THEORY AND PRACTICE OF EARTH REINFORCEMENT, FUKUOKA, KYUSHU, JAPAN, 5-7 OCTOBER 1988

Stability analysis of a reinforced embankment over soft cohesive foundation has been carried out. A reinforcing sheet, capable of developing a horizontal tensile strength, is placed at the embankment-foundation interface. For simplicity of analysis, it is assumed that the failure surface is a circular arc and a vertical tension crack develops in the embankment above the point at which the circular slip surface emerges from the foundation soil. It is also assumed that the undrained shear strength of foundation soil increases linearly with depth and phi.u=0 analysis is applicable. Nondimensional stability charts for two different cases of ground condition are compiled from the results of analysis; one is a case where the thickness of cohesive soil stratum is infinite, and the other is limited.(a) for the covering abstract of the symposium see IRRD 818063.