Static Numerical Analysis And Shake Table Test On Geogrid-Reinforced Earth Embankment In Highway

In this paper, on the basis of the numerical analysis with the concept of equivalent soil mass with reinforcement and shake table model test, the calculation of high loess embankment with geogrid-reinforcement in highway is carried out under static loading, and the dynamic response of high reinforced sand-gravel embankment with grogrid-reinforcement in highway is tested under earthquake. The behaviors of loess embankment are indicated as the following: ㏕he stress and deformation varies with reinforcement design conditions and foundation types. (2) The lateral deformation is effectively limited by reinforced earth layers and the settlement becomes small.@The lateral deformation is enlarged on soft foundations, and the settlement becomes large.@The reinforced earth layers on soft foundations behaves extension. The response behaviors of high sand-gravel embankment are indicated as the following: ㏕he amplification factor of earthquake acceleration varies with reinforced earth structure. (2) The basic frequency of the original embankments in different reinforcement conditions is about 0.76Hz.?The amplitude of dynamic deformation appears small and the dynamic stability is safe.