Abstract
On offshore disposal site, alluvial clay layer is frequently used as the bottom hydraulic barrier. The layer thickness of hydraulic barrier should be larger than a regulated value, and must not be decreased by the settling and impact of sea-reclaimed wastes. Knowing the settling phenomena of reclaimed wastes is very important to grasp the influences of offshore constructions on the ambient environment. Although the numerical analysis methods for such phenomena have been developed in recent years, it is difficult to develop the appropriate analysis. Therefore the numerical analysis approach for the materials settling in water freely has been carried out. The target of this paper is the reproducibility of the numerical analysis approach using CIP (Constrained Interpolated Profile) method and the numerically-analyzed results obtained by CIP method are compared with experimental results.
As a result, it is revealed that the free-settling behavior of single particle can be expressed by the CIP method which models the fluid and solid body. Especially it is demonstrated that CIP method is suitable for the calculation of terminal velocity for the calculation of the impact force and dent to the bottom hydraulic barrier.
