HYDRAULIC MODEL EXPERIMENTS TO UNDERSTAND INFLUENCE OF UPCOAST STRUCTURES ON MEASURES AGAINST CLOGGING OF THE MOTOFUJI CALVERT

Abstract

 The Motofuji calvert in the Fuji Coast (Fuji City, Shizuoka Prefecture) causes the problem of blockage against the discharge due to coastal drift from the mouth of the Fuji River, although various countermeasures implemented so far have not yet reached the fundamental solutions. For this problem, Endo et al.¹⁾ selected “a relocation of a jetty and a drilling behind a discharge port” as the effective blockage measure by the hydraulic model experiments.

 In this study, we investigated the applicability of “a relocation of a jetty and a drilling behind a discharge port” for blockage measure by conducting hydraulic model experiments for application to the field.

 As a result, it has become clear that "a relocation of a jetty and a drilling behind a discharge port" is effective blockage measure for the wave that had ordinary height, and if the tip of the existing jetty remain, a discharge port will be clogged.