A STUDY ON DEFORMATION CHARACTERISTIC OF COMPOSITE CAISSON TYPE BREAKWATER USING HYDRAULIC MODEL EXPERIMENT RESULT

Abstract

  Evaluation of the amount of the deformation is necessary for the performance-based design of caisson type composite breakwaters. However, the evaluation method of the deformation except for the sliding failure mode has not been established yet.
  In this study, authors obtained a past hydraulic model experiment result and discussed the deformation characteristic of breakwaters. As a result, it was shown that the deformation of breakwaters is not as simple as mere sliding but is accompanied by the deformation in the rubble mound even in the range of small deformation. Difference of the penetration angle of the edge of caisson into the rubble mound is discussed.