Large model tests were conducted on reinforced gabion walls filled with red sandstone under horizontal seismic loading to investigate the seismic response of walls. A series of tests were performed with different input seismic wave kinds and amplitudes. The dynamic characteristics and dynamic responses of model wall under horizontal seismic loading were discussed. Results show that reinforced gabion structure is excellent anti-seismic structure. There is significant amplification effect of input acceleration in reinforced gabion walls. The increment slope of horizontal acceleration magnification times is flatter with the wall height. With the high wall increased, there is an augmentation trend to horizontal acceleration. The magnification of lateral acceleration for each particle in wall is 1~1.88 under HACHI＿EW loading, and 1～2.78 under HACHI＿EW loading. The magnification times of lateral acceleration tend less obviously with the increase of amplitude, and the whole change shows a mainly linear stage. Vertical acceleration peaks both in the wall face and at the top of the wall increase greatly, reaching about the 44% to 56% of lateral acceleration peak of table. The vibration equation of vertical dynamic earth pressure of reinforced gabion wall under horizontal seismic loading is also derived.
