海岸开发工程回淤问题的动床波浪输沙试验研究

利用动床波浪输沙物理模型，试验研究了海岸开发工程引起的冲刷和回淤问题，直观预演了工程竣工后可能引起的；中淤现象。试验研究对象为南山滨海开发区旅游项目开发工程，试验结果给出了工程布置的各部分的淤积情况，表明淤积量较大，会引起工程区域及邻近海岸带的冲淤，并针对该工程提出建议。通过该试验的淤积情况表明：在实施海岸工程特别是在海岸带上做旅游项目开发时，要尽可能地不改变自然形成的原有海岸，否则可能会打破动态平衡，改变原有动力条件，破坏海洋环境，同时增加工程风险。强调了在海岸工程的设计和施工前要重视通过水工物模试验研究新平衡的演变过程。

Wave Experimental Research on the Movable Bed Siltation Due to Coastal Development Engineering

In this paper, a movable bed model for testing the wave sediment transport is used to study the erosion and siltation due to the coastal development engineering, and the possible erosion and siltation caused by the completed engineering are intuitively previewed. The experimental results show the erosion and siltation conditions in the Nanshan coastal development engineering area, both the engineering area and adjacent coastal zone might be strongly eroded or silted, and some suggestions for the development engineering are also made. It is shown from the experimental results that the original coastline should be changed as little as possible during the coastal development, otherwise the original dynamic conditions would be changed and the marine environment would be destroyed so as to raise the project risk. It should be pointed out that the hydraulic model test is very important to the coastal engineering design and construction.