本文選題：人工島 + 人工沙壩�。� 參考：《水動力學(xué)研究與進(jìn)展(A輯)》2017年02期

【摘要】：北戴河新區(qū)位于最具發(fā)展?jié)摿Φ沫h(huán)渤海經(jīng)濟(jì)圈中心地帶,為滿足旅游業(yè)發(fā)展需要而建的人工島和保護(hù)旅游海灘而建的人工沙壩對近海潮流動力有不同程度的影響。該文基于MIKE21 FM模塊通過大、中、小模型三層嵌套的方式建立洋河-葡萄島近岸海域潮流數(shù)學(xué)模型,研究分析人工島及沙壩工程建設(shè)前后的潮流動力變化特征,得到下列主要結(jié)論:工程建設(shè)后研究區(qū)域的主體潮流特征仍為順岸往復(fù)流,流速變化量漲潮大于落潮;人工島工程對流速場的影響范圍和程度均明顯大于沙壩工程,其中人工島工程引起的流速變化量是沙壩工程的4倍;人工島的建設(shè)使其內(nèi)部形成一個相對封閉的水域,流速近乎為零,而養(yǎng)灘工程區(qū)在兩側(cè)水工建筑物和水下人工沙壩的掩護(hù)作用下流速基本減小至0.10 m/s以下。
[Abstract]:Beidaihe New area is located in the center of Bohai Rim Economic Circle with the most potential development. Artificial islands built to meet the needs of tourism development and artificial sand dams built to protect tourist beaches have different effects on offshore tidal current dynamics. Based on MIKE21 FM module, the mathematical model of tidal current in the coastal area of Yanghe Grape Island is established by three layer nesting of large, medium and small models, and the characteristics of dynamic change of tidal current before and after the construction of artificial island and sand dam are studied and analyzed. The main conclusions are as follows: after the construction of the project, the main tidal current characteristics of the study area are still the reciprocating flow along the shore, the variation of velocity is greater than that of the falling tide, and the influence of artificial island engineering on the velocity field is obviously larger than that of the sand dam project. The change of velocity caused by artificial island project is four times that of sand dam project, and the construction of artificial island makes it form a relatively closed water area with a velocity of nearly zero. However, the velocity of water flow in Yangtan area is reduced to less than 0.10 m / s under the cover of hydraulic structures and underwater artificial sand dams on both sides.
【作者單位】： 上海海洋大學(xué)海洋科學(xué)學(xué)院;同濟(jì)大學(xué)土木工程學(xué)院水利工程系;上海市水利工程集團(tuán)有限公司;河北省地礦局秦皇島礦產(chǎn)水文工程地質(zhì)大隊;
【基金】：中央分成海域使用金項目(QHY-12)~~
【分類號】：P731.2;P75

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