A Study on Water Wave Energy Dissipation Structures(3/4)

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基本資料

Project title

Code/計畫編號

MOTC-IOT-100-H2DB005a

Translated Name/計畫中文名

消能式結構物特性之研究(3/4)

Project Coordinator/計畫主持人

Jaw-Guei Lin

Funding Organization/主管機關

Institute of Transportation, MOTC

Co-Investigator(s)/共同執行人

岳景雲
翁文凱
楊國誠
陳文俊

Department/Unit

Department of Harbor and River Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=2254087

Year

2011

Start date/計畫起

01-02-2011

Expected Completion/計畫迄

31-12-2011

Co-Investigator(s)

Wen-Kai Weng
Kuo-Cheng Yang

Bugetid/研究經費

2300千元

ResearchField/研究領域

土木水利工程
防災工程
自然生態保育

本計畫為四年期研究計畫的第三年，主要目標在透過水工模型斷面試驗及數值模擬等方式探討並發展符合臺灣各區地理環境需求的消能式港灣結構物，以及探討海岸公路邊坡的破壞案例、機制與防治工法。依臺灣地區之環境特性與功能屬性分類，消能式結構物的型式可包含長波抗浪型、功能目的使用型或臨時性設施型、以及環境保護型等三大類型結構物。本研究分別進行探討及研發新型之消能式結構物以替代傳統保護港灣、海岸之重力式海岸結構物，並期能達符合海岸空間環境需求且具保全功能之目的。在前二年的研究工作裡，長波抗浪型結構物的研究中研發一種利用內建斜坡促使波浪越波消能的碼頭結構物的雛形，並由水工模型試驗確認即使在入射波週期為40秒之長波亦能得到0.5的反射率，顯示其可行性。功能目的使用型或臨時性設施型的研究中探討了外加襯板的浮式結構物的運動行為及附近波場特性；環境保護型則著重於探討潛式多孔隙透水結構物的波浪特性。在探討海岸公路邊坡防護的結構物方面，主要是收集公路邊坡的破壞案例以及相關文獻與資料，並檢討各案例的破壞原因。第三年的計畫將持續前兩年的研究，並從工程實務上檢討各類型消波結構物的適當型式與特性分析，公路邊坡的監測與保護準則也將加以收集與檢討。 In this third year of the four years study entitiled with “A Study on Water Wave Energy Dissipation Structures”, the major goal is, by using the numerical simulations and hydraulic model tests, to develop suitable new wave dissipation structures which satisfy the coastal characteristics and the function requirements of the protective facilities for different purposes of Taiwan coastal zone. The functions of such structures needed around the Taiwan coast in different area include long period waves dissipation type, fast installation/special purpose type, and environmental protection type. In the past two years, the new structures of the three types will be designed, tested, and evaluated. For the study on long period wave dissipation type structure, a new wharf structure which utilized an internal slope that can cause the wave overtopping and dissipate the wave energy had been designed, through hydraulic model tests, the prototype was proved that even for the incident wave with period of 40 second, the ob-tained reflection coefficient is around 0.5. In the study on the fast installation/special purpose type structure, a skirt type floating structure was with developed and tested. In the study on the environmental protection/restoration type structure, the influence of submerged permeable structure on wave characteristics was studied. For the study of shore protection of coastal highway, the failure cases were collected and analyzed, and also the relative references and the characteristics about the coastal highway of Taiwan were collected and discussed. In this third year researches, all three new types of coastal structure will be studied more detail in accordance to the practical use, and the mornitoring, protection, and maintainence criteria will be collected and evaluated.

Keyword(s)

消能式結構物
數值模擬
水工模型試驗
海岸公路
邊坡保護
Wave dissipation structure
Numerical simulation
Hydraulic model test
Coastal highway
Shore protection

DSpace CRIS

A Study on Water Wave Energy Dissipation Structures(3/4)

基本資料

Description