發(fā)布時(shí)間：2018-01-11 18:40

  本文關(guān)鍵詞：港口航道對(duì)波浪的影響研究　出處：《大連海洋大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 航道 MIKE21 波浪折射

【摘要】：中國(guó)港口工程建設(shè)正直高峰期,航運(yùn)業(yè)發(fā)展迅速,隨著船舶向大型化發(fā)展,使得現(xiàn)有港口已經(jīng)不能滿足其要求,港口為了接納大型、高速船舶,航道和港池都不同程度上浚深和拓寬。在港口工程設(shè)計(jì)波浪的推算中,以前均不考慮航道的作用,忽略航道的存在,認(rèn)為海底是平緩的。1984年煙臺(tái)西港池一期工程港內(nèi)波況試驗(yàn)結(jié)果及煙臺(tái)西港池二期圍埝北端數(shù)次被波浪破壞的顯示,與不考慮航道對(duì)波浪作用情況下的波況矛盾。在1991年一航院在大連港大窯灣散糧碼頭工程方案的物理模型試驗(yàn)中,SE向波浪使南航到南側(cè)南防波堤堤頭設(shè)計(jì)波高提高了30%以上,ESE向波浪航道北側(cè)計(jì)劃建設(shè)的島式防波堤處波高提高了50%。此后在很多工程規(guī)劃和物理試驗(yàn)中,陸續(xù)發(fā)現(xiàn)多項(xiàng)工程設(shè)計(jì)的波浪受航道影響,由此可見,航道開挖對(duì)波浪的影響是不可忽視的。如何趨利避害,成為了工程建設(shè)的一個(gè)決定性問(wèn)題。本文通過(guò)利用國(guó)際通用的MIKE21應(yīng)用軟件,對(duì)航道開挖后波浪傳播的規(guī)律進(jìn)行了研究,分析了因波浪入射角、航道深度、航道寬度、波浪周期、航道邊坡變化所產(chǎn)生的航道兩側(cè)的波高分布特征的不同,并的得出影響波高分布的主要因素為波浪入射角、航道深度這一結(jié)論,為航道附近水工建筑物設(shè)計(jì)提供參考。針對(duì)實(shí)際工程案例,提出了三種不同的航道開挖方案,并且計(jì)算了不同航道水深下港內(nèi)的波高分布狀況,為實(shí)際工程施工提供了參考依據(jù)。
[Abstract]:The peak period of the integrity of port construction in China, the rapid development of the shipping industry, with the development of ships to large-scale, make the existing port can not meet its requirements, the port in order to accept large, high-speed ships. The channel and the harbour pool are dredged and widened in varying degrees. In the calculation of the wave in the design of port engineering, the function of the channel was not considered before, and the existence of the channel was ignored. It is considered that the sea floor is gentle. In 1984, the results of wave condition test in the first stage of Yantai West Port Pond Project and the results of wave damage at the north end of the second stage of Yantai West Port Pond cofferdam are shown. In 1991, in the physical model test of Dalian port Dayaowan bulk grain wharf project project, the first navigation institute carried out a physical model test. The SE wave increases the design wave height of the breakwater head from the south to the south by more than 30%. The wave height at the island breakwater planned to be built by ESE to the north side of the wave channel has been increased by 50%. Since then, in many engineering planning and physical experiments, the waves of many engineering designs have been found to be affected by the channel, so it can be seen. The influence of channel excavation on wave can not be ignored. How to seek advantages and avoid disadvantages has become a decisive problem in engineering construction. This paper makes use of international MIKE21 application software. The law of wave propagation after channel excavation is studied, and the characteristics of wave height distribution on both sides of channel caused by wave incident angle, channel depth, channel width, wave period and channel slope change are analyzed. The main factors affecting the distribution of wave height are the incident angle of the wave and the depth of the channel, which provides a reference for the design of hydraulic structures near the waterway. Three different waterway excavation schemes are put forward, and the distribution of wave height in the harbor under different waterway depths is calculated, which provides a reference for practical engineering construction.
【學(xué)位授予單位】：大連海洋大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U612.23;U652.3

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