吹填造陆工程对周围水体交换影响的数值模拟研究

在港口工程建设中,合理地综合利用疏浚土资源吹填造陆,可以产生巨大的经济效益。但吹填陆域形成后将会影响该区域海洋水体的对流-扩散,改变局部的海洋水动力,从而对该区域的海洋环境产生不利影响。为了更好地保护海洋环境,需要充分了解陆域形成前后水体交换的变化情况。根据国际常用规范标准,通过数值模拟分析,研究水体交换的变化规律。通过计算过水断面宽度,设置过水箱涵,优化设计方案,加快水体交换,达到保护海洋水环境的目的。

Influence of reclamation on seawater exchange based on numerical simulation

During construction of port projects, it will produce tremendous economic benefit to use dredged materials for land reclamation. Meanwhile, it will affect the exchange of seawater and change local marine hydrodynamics, thus it will exert an adverse effect on the marine environment. In order to protect the marine resource, we shall grasp the situation of water exchange after reclamation. Based on numerical simulation, and according to the international codes, we analyze the variation law of water. By calculating the width of the flow crosssection,optimizing the design of water culverts to accelerate the exchange of seawater, we achieve the objective of protecting the quality of seawater.