Experimental Study On The Performance Of Perforated Arc-plate Type Breakwater

In recent years,In order to adapt to the construction environment with deep water,strong waves and weak foundation,the structure of port engineering will develop towards new types such as open structure and wave dissipation structure.However,most of the wave forces are subjected to the substructure of the perforated breakwater so that the security and stability of the structure will suffer a severe test under the continuous action of atrocious sea conditions.Therefore,further experimental exploration and analysis is needed to seek for more scientific structural optimization and improvement in the future.Perforated breakwater can naturally exchange water and arc structure has good mechanical characteristic.Combining with the advantages of permeable breakwater and arc structure,the perforated arc-plate type breakwater,which consists of two arc plates,is proposed in this article.The wave damping performance of the breakwater is explored by two dimensional regular wave model tests.The performance of breakwater with square holes,circular holes and long strip holes are compared by changing the opening forms of the breakwater structure.Meanwhile,the relative width,the open porosity,the gap of arc plate and the submerged depth that will influence the performance are discussed.The experimental results show that the square hole is superior to the circular hole and the long strip hole in the case of the same conditions.It is also found that the relative width,the open porosity,the gap of arc plate and the submerged depth of upper plate have a certain influence on the wave damping performance of the perforated arc-plate type breakwater.