The purpose of this study is to preserve the natural environment condition in enclosed coastal sea area by the energy of sea water exchange and water purification itself, which are promoted by means of natural power, gravitation, sunlight and waves.
A CASE STUDY IN OSAKA BAY (JAPAN)
Actual size "UTSURO" conditions were supposed as follow.
Construction site : southern part of Osaka bay, Japan.
Construction date : September, 1989.
Breakwater body : Permiable rubble mound breakwater, upper wides was 5m.
Rubble stones : The average diameter was 0.15m.
Area. : 7,500 square meter