Net Vertical Loads on Geosynthetic Reinforcement in Column-Supported Embankments

Abstract

A new method is presented for calculating the net vertical loads applied by embankments and surcharge pressures to geosynthetic reinforcement in column-supported embankments. The new method satisfies force equilibrium and displacement compatibility of the system components, including the embankment, geosynthetic reinforcement, columns, and foundation soil between columns. Nonlinear response of the soil components is incorporated in the analysis. The new method is in good agreement with the results of instrumented case histories, pilot-scale tests, and numerical analyses.