Abstract
The present study aimed at developing a new concept of countermeasure against liquefaction-induced damage by utilizing artificial drain materials. A series of model tests and 3D seepage analyses were performed to investigate the spread of liquefaction and associated sand boils. The results demonstrate that the drain method is capable of suppressing the spread and propagation of liquefaction, while allowing the occurrence of liquefaction underneath the bottom of the drain installed. This resulted in preventing flows in and boiling above the ground effectively, giving rise to no significant surface deformations. It is a subject for future study to establish a design of this countermeasure against liquefaction-induced damages.
