Abstract: Geogrid plays an important role in the design, construction and performance of the column supported embankments. In the practical projects, geogrid damage is often encountered due to the rollover of the construction compaction machine. The damage ratio is estimated starting from the laboratory testing. An ABAQUS three dimensional finite element analysis model is established to simulate the stiffness changes before and after the damage occurred. The analytical results indicate that a dramatic reduction of the geogrid capacity is expected after the damage and this damage should be considered in the design and construction of the future column supported embankments.

Key words: Column Supported Embankments, Geogrid, Geogrid Damage Ratio, Numerical Aalysis