曹妃甸东南海堤二期工程设计与超长海堤合龙口特点

Caofeidian southeast breakwater phase Ⅱ engineering design and characteristics of super-long breakwater closure

曹妃甸东南海堤二期工程作为曹妃甸工业区的第一道防护建筑物,不仅是工业区的重要组成部分,而且对工业区起到屏障作用。通过分析工程区域的潮流和海岸动力地貌,得出"本工程的建设对曹妃甸深槽的影响较小"这一结论。海堤二期工程的建筑物等级按Ⅰ级设计,结构断面采用斜坡式结构,堤心材料选用抛石结构。该防波堤采用双棱体结构,海侧采用抛石棱体,陆侧采用袋装砂棱体,中间采用吹填砂。龙口的合拢是本工程实施的关键环节。介绍超长海堤合龙口的外部条件以及合拢施工工艺。

Caofeidian southeast breakwater phase II,the first protecting building of the Caofeidian industrial zone,is not only an important part but also a protection of the industrial zone.Through analyzing the tide and the dynamic topography of the engineering region,it is concluded that the construction of this project has little effect on the Caofeidian groove.The building level for this project is designed as Level I,the structural section is sloping structure,and the breakwater core is the riprap structure.The breakwater structure adopts double mounds： riprap for the sea side and sand bags for the land side,with fill sand in the middle.The closure engineering is the key for the implementation of this project.This article describes the exterior condition for the closure engineering and the closure construction technology.