GEOTECHNICAL CENTRIFUGE TEST OF REINFORCED ROAD EMBANKMENT AGAINST EARTHQUAKE-INDUCED LIQUEFACTION

Liquefaction is one of the causesof ground and structural damages during earthquake. The occurrence liquefaction earthquake caused by contractive behavior loose sands subjected to cyclic loading. Due this phenomenon, soil deposits will lose its strength, causing deformation settlement. In study, seismic response road embankment with proposed countermeasures analyzedby conducting a centrifuge model test. was gravitational acceleration 50g replicate prototype scale's actual conditions stress strain. Two types countermeasures, gravel mat geogrid, were used in study. study aims observe mechanism liquefaction. results show that helped prevent failure reducing excess pore water pressure development dissipation time It also reduces lateral spreading foundation based on visual observations.