期待総補修費の算定に基づく質量を割増した被覆石による堤体補修の検討

抄録

The repair of detached breakwater body is discussed in this paper. In the repair of the detached breakwater body, the use of rubble stones with larger mass than the required mass in the initial design is proposed. Although the estimation of the repair cost depends on the circumstances of the detached breakwater, the effectiveness of such kind of repair method is investigated on the basis of estimation of the expected repair cost. The repair criterion was determined on the basis of transmitted wave height behind the detached breakwater.
The authors show that the repair cost was reduced in several cases where larger rubble stones were used for repairing the detached breakwater body. In other words, the stability of the detached breakwater improved at low repair cost by such kind of repair method in several cases.