ABSTRACT
Liquefaction associated ground flow behind quaywalls was studied based on case studies, shaking table tests and analyses. Damage to bridges and other structures due to the ground flow during three earthquakes was introduced. The mechanism of the ground flow was demonstrated by the shaking table tests. The quaywalls moved towards the sea or river due to the liquefaction of the ground and inertial force of the wall, then the ground flowed with structures. A simple prediction method to estimate the ground flow was derived from case studies. Effectiveness of the measures by installing sheet piles or improving the ground was demonstrate by the shaking table tests.
