BREAKWATER STRUCTURE, CAISSON FOR BREAKWATER AND REINFORCEMENT METHOD OF BREAKWATER

摘要

PROBLEM TO BE SOLVED: To provide a breakwater structure which is so strong that it is not easily made to fall and destroyed even when a caisson of a breakwater is slid by action of external force exceeding assumption like an unanticipated tsunami attack, the caisson for the breakwater and a reinforcement method of the breakwater.SOLUTION: For the breakwater structure, a caisson 11 is a superstructure, a foundation mount M by debris ST is a substructure, and a notched surface 13 notched so as to be inclined toward a bottom surface of the caisson is provided on a back surface lower part of the caisson. The notched surface helps formation of a rise by the ground and/or the debris behind the notched surface when the caisson is slid by the external force from a front surface, and the rise resists movement of the caisson.