SUSTAINABILITY OF WAVE FORCE REDUCTION AND PREVENTINO OF COLLAPSE BY BUFFER MATERIAL THROUGH CAISSON JOINTS

Abstract

 The present study investigated the sustainability of the effects of wave force reduction and prevention of collapse by a new wave reduction method through caisson joints by a buffer material proposed by the authors. The results of the measurements of caisson joint waves at aging facilities show the prolonged effect of the wave reduction such that the wave transmission coefficient was as low as 10% even one year after installation despite some configuration changes of caisson joints due to continuing wave impacts as well as the chages in surrounding environments. The results of the investigation further revealed the effects on preventing the cycles of collapse in the field. Hence, the propose method is expected to significantly contribute to such disaster prevention and mitigation as well as to sustainable coastal infrastructures.