摘 要
由于港口及其海岸防護技術(shù)要求的提高，在工程實際中對直立式防波堤的要求也越來越高。為了能夠減少波浪反射和結(jié)構(gòu)受力，并且降低實際工程造價，近年來各國競相研究各種新型的防波堤結(jié)構(gòu)。在這種背景下，本文提出了一種新型的開孔直立式防波堤結(jié)構(gòu)型式——雙層開孔直立式消浪板結(jié)構(gòu)。
由于開孔結(jié)構(gòu)能有效地消減波浪的能量，減小堤前反射，但是波浪與防波堤結(jié)構(gòu)的相互作用機理十分復(fù)雜，對于波浪與開孔結(jié)構(gòu)的理論研究也較少，可運用于實際工程中的關(guān)于透射系數(shù)、波浪力的計算方法研究也不多，因此非常有必要對雙層開孔直立式消浪板結(jié)構(gòu)進行研究。
首先根據(jù)波浪特點設(shè)計了與波浪水槽同寬的三種開孔率（4.6%圓形開孔、18.3%圓形開孔、32.1%的組合孔）的雙層開孔直立式消浪板結(jié)構(gòu)模型。在波浪水槽進行物理模型試驗，對波浪與雙層開孔直立式消浪板的相互作用進行研究。在工程常用范圍內(nèi)選取試驗波要素，運用浪高儀和采集系統(tǒng)分別采集波高變化情況數(shù)據(jù)，分析計算各個型式雙層開孔直立式板結(jié)構(gòu)的透射系數(shù)Kt。分析透射系數(shù)Kt與無因次量波陡H/L，相對板間距s/d，相對水深d/H，開孔率A/Ao之間的相關(guān)性，研究雙層開孔直立式板結(jié)構(gòu)的消波性能。并對雙層開孔直立式消浪板的結(jié)構(gòu)型式進行比較，得出消浪性能好的結(jié)構(gòu)幾何型式。
其次運用壓力傳感器和采集系統(tǒng)采集各結(jié)構(gòu)相同位置的表面壓強數(shù)據(jù)?？偨Y(jié)比較波浪對直立式結(jié)構(gòu)作用的理論分析，并對三種開孔率模型結(jié)構(gòu)表面的點壓強進行分析，研究雙層開孔直立式消浪板的波壓力作用分布情況。對開孔直立板與實體直立板的波壓力分布情況進行對比，檢驗雙層開孔直立式消浪板結(jié)構(gòu)承受波浪作用的優(yōu)越性。
最后利用ADINA建立實體結(jié)構(gòu)，采用周期性荷載對其作用，分析其應(yīng)力分布和位移分布情況，為模型改造及工程實際運用提供參考

關(guān)鍵詞：開孔模型結(jié)構(gòu)；規(guī)則波；透射系數(shù)；波壓力









Abstract
With the improvement of the port and the coast protection technology, the vertical type breakwater requirements in engineering practice is higher and higher. In order to reduce the wave reflection and the structure force, also to lower the project cost,many countries have conducted researches to study new type of breakwaters in recent years.Under this background, this paper puts forward a new kind of perforated upright type breakwater structure patterns -- two-layer perforated upright energy dissipation plate structure.
Because open hole structure can effectively reduce wave energy, decreasing embankment reflection, but the interaction mechanism with the waves and breakwater structure is extremely complex, for waves and perforated structure of related theory still not mature, and can be used in engineering practice about the transmission coefficient and wave force research method is little, so it is very necessary to research two-layer perforated upright energy dissipation plate structure .
Firstly, According to the characteristics of wave，three kinds of opening rate (4.6% circular openings, 18.3% circular openings, 32.1% of combination of double holes) two-layer porous upright energy dissipation plate structure model are designed with the width as same as the water lume.Two-dimensional physica model test is tested in the water lume , research the interacting of waves and two-layer perforated upright energy dissipation plate.Experiment common range waves are selected in project, study wave transmission of the two-layer porous upright structure, using wave mapping and acquisition system respectively gather the wave height change datas, analyse and calculate each type two-layer perforated upright energy dissipation plate structure of transmission coefficient Kt .Through the analysis of the transmission coefficient Kt and non-dimensional quantity wave steep H/L, relative plate spacing s/d, relative depth d/H, opening rate A/Ao, research the correlation between the two-layer perforated upright energy dissipation plate structure of wave elimination performance. And compare with the double orifice opened upright breaker plate structure types, it is concluded that good performance model structural geometry.
Secondly using pressure sensors and acquisition system to collect the same position surface pressure data of each structure .Wave and vertical structure breakwaters function theory is analyzed, and the three kinds of opening rate model structures’surface point pressure are analyzed, two-layer porous upright energy dissipation plate structure’s wave pressure distribution function is researched. Compare the wave pressure distribution of perforated and entity erect board, comparing validation two-layer porous upright energy dissipation plate structure under wave loading superiority.
Finally, using the ADINA finite element software establish physical structure, adopt periodic loads on structure’s surface, analyzes the stress distribution and displacement distribution, which provide reference for model transformation and practical use for.
Key words：perforated model structure; regular wave; transmission coefficient; wave pressur


目 錄
摘 要 I
Abstract III
目 錄 V
Contents VII
第1章 緒論 1
1.1 防波堤結(jié)構(gòu)的發(fā)展與研究現(xiàn)狀 1
1.2 論文的背景和意義 5
1.3 國內(nèi)外開孔板式防波堤結(jié)構(gòu)研究概況 5
1.3.1 國外部分 5
1.3.2 國..