Shaking table test on the model of reinforced soil retaining wall with composite Gabion and geogrid

The composite Gabion and geogrid reinforced soil retaining wall （GGRSRW） has been widely used in highway and railroad projects. Shaking table test of GGRSRW are carried out to analyse actual dynamic responses. The dynamic characteristics such as acceleration amplification factor， vertical settlement and horizontal displacement of the retaining wall under seismic load are studied. The results show that the retaining wall is in an overall stable state when the peak value of input acceleration is 0.8g. The acceleration amplification factor increases nonlinearly along the wall height ranges from 1.54 to 1.97， which is similar to the trend of the specifications of seismic design for highway engineering. The maximum vertical settlement of the model is 3.48 mm. The ratio of the settlement to height is 0.174%， which is far less than the 2% limit of the American AASHTO standard. As the input ground motion increases， the horizontal displacement of the retaining wall gradually increases along the wall height. The wall deformation mode changes from rotation to translation and rotation coupling. The total residual displacement reaches 1.06% of the wall height.