Design and field test of a new economical breakwater

Abstract

The Second District Construction Bureau, Ministry of Transport, Japan plans to construct a new type of breakwater at the mouth of Kuji bay in northeastern Japan. This breakwater is designed economically in consideration of wave force depressing along 45 degree sloping top. The effect of the large sloping top is to reduce the total cost about 20 percent against the cost of a normal breakwater. The new breakwater caisson will be constructed.