Abstract
In order to obtain the basic knowledge about the deformation mechanisms of box culvert structures buried in the saturated sand during an earthquake, a series of centrifuge shaking table tests were conducted using metal structures, on which two-way load cells were fixed on the each side walls and the upper slab to measure the acting force separately. It was observed that because of the negative excess pore pressure generation, the shear force per unit area and the total horizontal earth pressure could become higher than the initial vertical total stress and the moment ratios of the moment acting on the each member of the structure to the summation of those moments gradually changed during a shaking event.
