Abstract
Little is known on the mechanical behavior of unsaturated soils during seismic loading conditions. In addition, it takes extremely long time to conduct laboratory tests on unsaturated soils, since the permeability of the ceramic disk that is employed for controlling pore water pressure is significantly low. In the present study, therefore, a porous membrane with high permeability was introduced to a pedestal of triaxial test apparatus, by which the testing time could be shortened successfully. The liquefaction properties of unsaturated Inagi sand were measured with this modified apparatus and were compared with those of saturated Inagi sand. [This abstract is not included in the PDF]
