Fabric Reinforced Embankments Constructed on Weak Foundations

摘要

A two-dimensional nonlinear, large displacement finite element program called GEONON (a modification of NONSAP) for the static analysis of embankments on weak foundations has been developed. Both linear and elasto-plastic stress-strain soil models are included, and incremental and stage construction and the process of compaction can be simulated. The program GEONON, however, is not developed herein as an adaptable design tool for the practicing highway engineer. The research investigated the response in terms of stresses and displacements of a low embankment constructed on soft muskeg soils in Alaska. Both unreinforced and reinforced cases were considered for drained and undrained foundation conditions of varying stiffness. Single and multilift construction was investigated and the effect of compaction was simulated.