2022 Volume 78 Issue 2 Pages I_589-I_594
A method has been proposed and adopted whereby the ground is cemented by the deep mixing method and the cemented-treated soil is used as the main body of quay walls (earth retaining structure for the backfill ground). In this paper, the seismic behaviour of this type of quay walls is investigated with a view to generalising this structure. Specifically, the seismic behaviour was parametrically investigated by centrifuge model tests, varying the dimensions and shape of the main body. The results showed that it was desirable for the main body of quay walls to have a certain width (more than the depth of the improvement) and to land on a non-liquefied layer. The seismic stability assessment method was also clarified by using the Newmark method to estimate the amount of sliding of the quay wall.
