Abstract
High-quality maintenance of seawalls and cut-off structures by which the contaminated water is stored is strongly required so as to preclude it from leaking into surrounding sea. This paper describes the status-quo of maintenance of waste reclamation sites by means of in-situ survey most all over Japan.
Taking the facts described from the above survey into account, in case of failure of cut-off structures, which are usually made of geo-membrains or steel sheet piles, seepage and advection-dispersion phenomena are analyzed by using Eulerian-Lagrangian finite element method in order to clear the environmental risk on surrounding sea of waste reclamation sites.