柔性浮式防波堤的物理模型试验研究

摘要

浮式防波堤具有不破坏海洋生态环境，保证防波堤前后水体自由流动，保持海洋天然生态环境和海水清洁，对地基要求不高、不需要另进行地基处理，造价随水深变化不大等优点。但目前的浮式防波堤结构型式对短波的掩护效果尚好，但对于长波的透过率仍然很高。文中提出了一种由消浪块体、柔索和锚链系统组成的新型柔性浮式防波堤结构形式。通过物理模型试验，得到规则波作用下波高、波浪周期和堤身宽度对柔性浮式防波堤透射系数的影响。试验结果分析表明该新型柔性浮式防波堤消浪性能优越，对长波和短波均有较好的消减作用。%The advantages of floating breakwaters are to cause no damage to marine ecological environment , to ensure the free flow of water before and after the breakwater , to maintain the marine natural ecological environ-ment and sea water clean , not to need foundation treatment , low demand for foundation , little cost increase with death changes .The sheltering effect of most floating breakwaters on short-wave is still good , but the long-wave transmittance remains high .This paper presents a new floating breakwater structure consisting of wave dissipation blocks , flexible cables and the mooring system .Through physical model laboratory tests , we obtain the influence of regular waves wave height , wave period and levee width on the dissipation coefficient of flexible floating break-waters.The research shows that the flexible floating breakwater has good superior wave dissipation performance and long-wave and short-wave subduction effects .