2004 Volume 20 Pages 79-84
The design of a breakwater is shifting to the performance-based-design from the evaluation method by safety factor to sliding, overturning, and bearing capacity. And the reliability-based-design for having taken deformation of a breakwater into consideration is devised. In order to adopt the reliability-based-design in the design of a breakwater, a numerical simulation technique is desired, which can describe dynamic destructive phenomenon and predict quantitative deformation appropriately. The authors think that DEM is leading as the calculation technique to acquire important data about deformation. In this research, the authors carried out the numerical simulation for the sliding experiment of a typical breakwater model using DEM. Consequently, the experiment is reproduced good using the dynamic friction 0.5 in addition to the static friction 0.6 between the caisson and the mound. And it became clear that bearing capacity structure of caisson load was formed in the mound.
