Apart from the effective restraint soils

soilbags have also a function of water filtration and soil conservation

so they can be used to resist foundation soil liquefaction. However

seldom studies have been made on the liquefaction resistance performance of soilbags. A series of shaking table tests was carried out on soilbags-stacked cushion to verify its liquefaction resistance performance and investigate the influence of the vibration acceleration

the layers and arrangements of soilbags on liquefaction resistance. The results show that soilbags have good liquefaction resistance effect

and the excess pore pressure ratio of soil in bags is less than that of the surrounding soil at the same depth. The drainage performance of soilbags is contributed to its good permeability

and the discharge of pore water along the interface between soilbags and foundation soil as well as the gaps among soilbags. Compared with the rigid impervious cushion

the surface of soilbag cushion basically keeps level during the process of vibration

showing better deformation coordination performance. The increase of soilbag layers and the staggered arrangement of soilbags are beneficial to anti-liquefaction.