M. Santos , A. Corredor , E. Maciñeira , V. Bajo , M.E. Gómez-Martín , J.R. Medina
{"title":"Aspectos innovadores en el diseño y construcción del dique Oeste en el puerto exterior de A Coruña en Punta Langosteira (España)","authors":"M. Santos , A. Corredor , E. Maciñeira , V. Bajo , M.E. Gómez-Martín , J.R. Medina","doi":"10.1016/j.riba.2016.07.005","DOIUrl":null,"url":null,"abstract":"<div><p>This article describes the innovative aspects in design and construction of the western breakwater of the outer port at Punta Langosteira (A Coruña, Spain). The secondary breakwater is formed by the south breakwater (1.<sup>st</sup> phase) and the western breakwater (2.<sup>nd</sup> phase), currently under construction, and it is intended to complete the shelter provided by the main breakwater of the outer port of A Coruña and to ensure high operability of the new port facilities, as well as to contain the movement of the beaches to the west of the port. The bidding process, which permitted variations to the preliminary design, favors innovation, allowing for a variety of solutions based on the use of different armor units, and cubipods were finally selected for the main armor layer. The 1.35<!--> <!-->km long secondary breakwater is protected by a single-layer 25 t and 30 t cubipod armor in the trunk, and a double-layer 45 t cubipod armor in the roundhead. The alternative cubipod solution allows for a breakwater which withstands wave climates higher than the defined limit state (H<sub>s</sub>=8.75 m in the trunk) and significantly reduces the economic cost and the concrete consumption. In order to optimize and validate the alternative solution, 3D hydraulic stability and overtopping test were performed with 1/51 scale, similar to those made to justify the preliminary design by the port authority. 1,360 cubipod units (15- and 25-tonne) from the southern and northern breakwaters, which are now sheltered by the new breakwater, have been re-used at the western breakwater. A transition single- to double-layer armor has been constructed, with opposite fitting, increasing progressively the thickness of the filter layer to maintain a homogeneous exterior surface of the armor when modifying the armor thickness.</p></div>","PeriodicalId":42124,"journal":{"name":"RIBAGUA-Revista Iberoamericana del Agua","volume":null,"pages":null},"PeriodicalIF":0.2000,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.riba.2016.07.005","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"RIBAGUA-Revista Iberoamericana del Agua","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2386378116300214","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"WATER RESOURCES","Score":null,"Total":0}
引用次数: 1
Abstract
This article describes the innovative aspects in design and construction of the western breakwater of the outer port at Punta Langosteira (A Coruña, Spain). The secondary breakwater is formed by the south breakwater (1.st phase) and the western breakwater (2.nd phase), currently under construction, and it is intended to complete the shelter provided by the main breakwater of the outer port of A Coruña and to ensure high operability of the new port facilities, as well as to contain the movement of the beaches to the west of the port. The bidding process, which permitted variations to the preliminary design, favors innovation, allowing for a variety of solutions based on the use of different armor units, and cubipods were finally selected for the main armor layer. The 1.35 km long secondary breakwater is protected by a single-layer 25 t and 30 t cubipod armor in the trunk, and a double-layer 45 t cubipod armor in the roundhead. The alternative cubipod solution allows for a breakwater which withstands wave climates higher than the defined limit state (Hs=8.75 m in the trunk) and significantly reduces the economic cost and the concrete consumption. In order to optimize and validate the alternative solution, 3D hydraulic stability and overtopping test were performed with 1/51 scale, similar to those made to justify the preliminary design by the port authority. 1,360 cubipod units (15- and 25-tonne) from the southern and northern breakwaters, which are now sheltered by the new breakwater, have been re-used at the western breakwater. A transition single- to double-layer armor has been constructed, with opposite fitting, increasing progressively the thickness of the filter layer to maintain a homogeneous exterior surface of the armor when modifying the armor thickness.
本文描述了Punta langgosteira (A Coruña,西班牙)外港西部防波堤设计和施工的创新方面。次级防波堤由南防波堤(1)组成。第一期)和西部防波堤(第二期)。目前正在建造的第2阶段),其目的是完成A外港Coruña主要防波堤提供的庇护,并确保新港口设施的高度可操作性,以及遏制海滩向港口西部的移动。投标过程允许对初步设计进行变更,有利于创新,允许基于使用不同装甲单位的各种解决方案,最终选择三足架作为主要装甲层。1.35公里长的二级防波堤在主干上采用单层25吨和30吨立方脚装甲,在圆头采用双层45吨立方脚装甲。另一种立方体解决方案允许防波堤承受高于规定极限状态的波浪气候(主干Hs=8.75 m),并显着降低经济成本和混凝土消耗。为了优化和验证替代方案,以1/51的比例进行了3D水力稳定性和过顶测试,类似于港务局为证明初步设计所做的测试。来自南部和北部防波堤的1,360个立方体单元(15吨和25吨)现在被新的防波堤所保护,已在西部防波堤重新使用。构造了一种过渡的单层到双层装甲,与相反的拟合,在修改装甲厚度时,逐步增加过滤层的厚度以保持装甲的均匀外表面。