摘要
从三沙湾的平面二维潮流数值模型入手,计算铁基湾泥沙冲淤情况,比较围垦工程前后流场的变化,着重比较不同点位的流速,分析研究了海湾围垦工程改变纳潮量对湾内深水航道以及有关区域的影响.研究发现,围垦工程使得湾内纳潮量减少,从而对湾内的深水航道产生影响,故不宜进行大规模围垦.通过对3个备选方案的计算、分析和比较,得到方案一的影响最小,围垦面积不宜超过2800hm2的结论.
In combination with the 2D numerical model of tidal current in the waters of the Sansha Bay, sediment scour and silting at the Tieji Bay is calculated, and the flow fields before and after the reclamation at the Tieji Bay are compared, with emphasis placed on the comparison of velocities at different points. Besides, an analysis is made on the impact of reclamationinduced variation of the tidal capacity on the deep channel and related waters. The research shows that the reclamation will reduce the tidal capacity of the Tieji Bay, and bring about negative effects on the deep channel at the Sansha Bay, so largescale reclamation should be avoided. By analysis and comparison of the three alternatives for the reclamation project, it is concluded that the impact of the alternative 1 is the smallest, and that the reclamation area should be limited within 2?800?hm2.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第6期99-103,共5页
Journal of Hohai University(Natural Sciences)
