Design Method of Submerged Dike by use of Soil Bags for Man-made Tidal Flat

Abstract

The application of geo-textile soil bags flled with recycled dredged material is proposed for the material of submerged dike of man-made tidal flat.The proposed dike is made of apile of soil bags, in which not only sand but soft clayey material is supposed to be filled. In this study, the design method is proposed for the construction of dike of soil bag in the initial stage of placement of soil bags through the final stage of filling material for tida1 flat. Especially, the shape of soil bags at the placement, the required strength of geo-textile material and the deformation of dikealong with consolidation are analyzed in a case study, and the applicability of submerged dike by soil bag is investigated.