新型浮式防波堤的结构选型

Discussion on the Structure of a New-Type Floating Breakwater

针对传统浮式防波堤多为刚性体结构、消浪效果相对较差、在极端波浪条件下稳定性不强等问题,提出了双箱式、圆弧式、双筒单板式、双筒双板式4种基于新型高密度聚乙烯(HDPE)材质浮筒、塑料盲沟的组合式防波堤和1种柔性浮式防波堤。这些新型结构防波堤不需要改变当地水动力条件,造价较低,结构受力小于单一刚性体结构,紧急情况下安全性显著增加等优点。现有柔性浮式防波堤的应用案例表明,此类防波堤在短波作用下的消浪效果能够满足使用要求。

To improve the poor wave elimination and weak stability under extreme wave conditions of the traditional rigid floating breakwater,new designs were proposed of a flexible floating breakwater and four floating breakwater based on late-model HDPE buoy and plastic blind drain,respectively two-box,arc-shaped, double-cylinder-single-plate, and double cylinder-double-plate floating breakwater.These new floating breakwaters are adaptable to local hydrodynamic condition,cost less,and have smaller structure stress and much better performance for security under extreme conditions.Cases of the existing flexible floating breakwater in use show that flexible breakwaters meet the wave elimination requirements under short waves.