东壁岛围垦对元洪港区潮流及泥沙淤积影响的数值模拟

Numerical simulation of influence of Dongbi Island reclamation project on tidal current and sediment deposition in Yuanhong Port area

利用所建立的具有动边界的福清湾潮流数学模型,研究了东壁岛围垦前后元洪码头前的潮量及流速变化,并采用工程泥沙方法估算了元洪码头前的泥沙淤积强度.研究表明,在元洪码头前250m范围以内,围垦后的流速较围垦前略有减小,围垦所引起的泥沙淤积强度为0 05m/a.

A tidal current numerical model with floodebb land boundary was developed for the Fuqing Bay for research of the influence of reclamation. The reclamationinduced variation of the tidal capacity and flow velocity in front of the Yuanhong Dock was calculated based on the engineering sedimentation method. The results show that in the range of 250?m ahead of the Yuanhong Port, the flow velocity decreases a little after the completion of the reclamation project, and the project inducedsiltation intensity is 0.05?m/a, indicating that the influence of the reclamation project on the tidal current and the sediment deposition in the Yuanhong Port area is small.