Abstract
This study aims to develop an inexpensive liquefaction countermeasure with a focus on the placement of geogrid beneath the residence. In order to attain this aim， a series of shaking table tests were carried out to explore the effect of the geogrid shape on reducing liquefaction-induced settlement. It was indicated from the results of these tests that high stiffness and length of geogrid were reducing liquefaction-induced settlement. Thereafter， discussion was made on clarification of the mechanism of reducing liquefaction-induced settlements of sand deposits reinforced by geogrid.
