北海铁山港建港方案对铁山湾潮流泥沙的影响研究

为了预测铁山湾水域建港方案给当地水动力及泥沙环境带来的影响,通过建立平面二维潮流数学模型,率定后计算结果和实测资料吻合良好。结果表明:采用此方案建港后,潮位变化幅度不大,水位抬升主要在码头前沿,最高不超过0.7cm;流速在普遍降低的同时,局部区域会有增加;由于航道加深,纳潮量在建港后总体却呈增加的趋势,而航道内泥沙的淤积以底沙为主,但总体较少,不会对通航造成威胁。

Influence on tidal flow and sediment by planning Tieshan Port proied in Beihai

In order to evaluate the influence on tide and sediment by planning Tieshan Port projeet,a 2D tidal current numerical model was set up in this paper.After calibration,the calculation results were found to be in good agreement with the measurements.The results show that the rise of tide after project is no more than 0.7 m and the velocity of the tidal current is mainly decreased except for local area.However,the tidal flux is increased because of the deepened waterway.The deposition in the waterway is mainly composed of bed sand.But the sedimentation amount is so small that it will not influence the navigation condition.