双层开孔直立式消浪板.doc
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双层开孔直立式消浪板,摘 要由于港口及其海岸防护技术要求的提高，在工程实际中对直立式防波堤的要求也越来越高。为了能够减少波浪反射和结构受力，并且降低实际工程造价，近年来各国竞相研究各种新型的防波堤结构。在这种背景下，本文提出了一种新型的开孔直立式防波堤结构型式——双层开孔直立式消浪板结构。由于开孔结构能有效地消减波浪的能量，减小堤前反射，但...
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摘 要
由于港口及其海岸防护技术要求的提高，在工程实际中对直立式防波堤的要求也越来越高。为了能够减少波浪反射和结构受力，并且降低实际工程造价，近年来各国竞相研究各种新型的防波堤结构。在这种背景下，本文提出了一种新型的开孔直立式防波堤结构型式——双层开孔直立式消浪板结构。
由于开孔结构能有效地消减波浪的能量，减小堤前反射，但是波浪与防波堤结构的相互作用机理十分复杂，对于波浪与开孔结构的理论研究也较少，可运用于实际工程中的关于透射系数、波浪力的计算方法研究也不多，因此非常有必要对双层开孔直立式消浪板结构进行研究。
首先根据波浪特点设计了与波浪水槽同宽的三种开孔率（4.6%圆形开孔、18.3%圆形开孔、32.1%的组合孔）的双层开孔直立式消浪板结构模型。在波浪水槽进行物理模型试验，对波浪与双层开孔直立式消浪板的相互作用进行研究。在工程常用范围内选取试验波要素，运用浪高仪和采集系统分别采集波高变化情况数据，分析计算各个型式双层开孔直立式板结构的透射系数Kt。分析透射系数Kt与无因次量波陡H/L，相对板间距s/d，相对水深d/H，开孔率A/Ao之间的相关性，研究双层开孔直立式板结构的消波性能。并对双层开孔直立式消浪板的结构型式进行比较，得出消浪性能好的结构几何型式。
其次运用压力传感器和采集系统采集各结构相同位置的表面压强数据。总结比较波浪对直立式结构作用的理论分析，并对三种开孔率模型结构表面的点压强进行分析，研究双层开孔直立式消浪板的波压力作用分布情况。对开孔直立板与实体直立板的波压力分布情况进行对比，检验双层开孔直立式消浪板结构承受波浪作用的优越性。
最后利用ADINA建立实体结构，采用周期性荷载对其作用，分析其应力分布和位移分布情况，为模型改造及工程实际运用提供参考
关键词：开孔模型结构；规则波；透射系数；波压力
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 录
摘 要 I
Abstract III
目 录 V
Contents VII
第1章 绪论 1
1.1 防波堤结构的发展与研究现状 1
1.2 论文的背景和意义 5
1.3 国内外开孔板式防波堤结构研究概况 5
1.3.1 国外部分 5
1.3.2 国..
由于港口及其海岸防护技术要求的提高，在工程实际中对直立式防波堤的要求也越来越高。为了能够减少波浪反射和结构受力，并且降低实际工程造价，近年来各国竞相研究各种新型的防波堤结构。在这种背景下，本文提出了一种新型的开孔直立式防波堤结构型式——双层开孔直立式消浪板结构。
由于开孔结构能有效地消减波浪的能量，减小堤前反射，但是波浪与防波堤结构的相互作用机理十分复杂，对于波浪与开孔结构的理论研究也较少，可运用于实际工程中的关于透射系数、波浪力的计算方法研究也不多，因此非常有必要对双层开孔直立式消浪板结构进行研究。
首先根据波浪特点设计了与波浪水槽同宽的三种开孔率（4.6%圆形开孔、18.3%圆形开孔、32.1%的组合孔）的双层开孔直立式消浪板结构模型。在波浪水槽进行物理模型试验，对波浪与双层开孔直立式消浪板的相互作用进行研究。在工程常用范围内选取试验波要素，运用浪高仪和采集系统分别采集波高变化情况数据，分析计算各个型式双层开孔直立式板结构的透射系数Kt。分析透射系数Kt与无因次量波陡H/L，相对板间距s/d，相对水深d/H，开孔率A/Ao之间的相关性，研究双层开孔直立式板结构的消波性能。并对双层开孔直立式消浪板的结构型式进行比较，得出消浪性能好的结构几何型式。
其次运用压力传感器和采集系统采集各结构相同位置的表面压强数据。总结比较波浪对直立式结构作用的理论分析，并对三种开孔率模型结构表面的点压强进行分析，研究双层开孔直立式消浪板的波压力作用分布情况。对开孔直立板与实体直立板的波压力分布情况进行对比，检验双层开孔直立式消浪板结构承受波浪作用的优越性。
最后利用ADINA建立实体结构，采用周期性荷载对其作用，分析其应力分布和位移分布情况，为模型改造及工程实际运用提供参考
关键词：开孔模型结构；规则波；透射系数；波压力
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 录
摘 要 I
Abstract III
目 录 V
Contents VII
第1章 绪论 1
1.1 防波堤结构的发展与研究现状 1
1.2 论文的背景和意义 5
1.3 国内外开孔板式防波堤结构研究概况 5
1.3.1 国外部分 5
1.3.2 国..
