江苏如东人工岛工程对周边海域水动力的影响

利用MIKE21软件水动力模块建立和验证了西太阳沙二维潮流数学模型,并将该模型应用到工程项目中,分析了工程前后水动力条件的变化。应用结果表明:人工岛方案实施后整体流场基本不变,即使出现流速、流向的变化也仅局限在人工岛周围的局部区域,对烂沙洋深槽流场不会产生影响。因此,在现状纵横岸线边界条件下,实施人工岛工程后,要维持工程附近的滩槽稳定,潮流优势是关键,所以在实施任何建港或围垦工程时都必须以维持现状水流特征和动力环境为前提,应尽量消除不稳定因素,以保证烂沙洋海域滩槽的稳定。

Influence of artificial island construction on hydrodynamics in waters around Rudong

Two-dimensional numerical modeling of tidal current in Xitaiyangsha was established by Mike21 hydrodynamic model, and this model was used in project to analyze the change of the hydrodynamic condition.The application results show that the affection toward integrated flow field is not big after the schemes are realized. Only local flow field around artificial island is changed and Lanshayang waterway flow field will not be affected. So under the current boundary status of coastline, even if artificial island project is implemented, the advantage of tide is key to keep the stability of construction area.So any implementation in any project must take maintaining the current water flow status as premise, eliminating unstable factors.