南通港洋口港区总体规划方案潮流数学模型研究

Numerical modeling of tidal current on the general planning scheme of Yangkou Harbor District of Nantong Port

使用TK-2D软件建立了南通港洋口港区所在海区的基于不规则三角形网格的潮流数学模型,在根据现场实测资料对模型进行了充分验证的基础上,对南通港洋口港总体规划方案进行了潮流场模拟研究。根据模拟计算结果,对总体规划方案实施后对附近主要水道(烂沙洋南水道、烂沙洋中水道、烂沙洋北水道、小洋港水道)的影响进行了分析,从潮流动力角度论证了总体规划方案的可行性。研究结果表明:(1)该海区潮流动力强劲,表现为顺深槽的往复流动,潮流动力维持着该海区的滩槽格局;(2)总体规划方案对工程附近海区的各主要水道潮流动力影响很小,各水道会继续维持其存在,总体规划方案是可行的。

By use of TK- 2D software, 2- D tidal current mathematical model with irregular triangular grids is set up in the sea area where Yangkou Harbor District of Nantong Port lies. On the basis of full validalion and verification of the models with field data, the tidal current field is numerically simulated and studied on the general planning scheme of Yangkou Harbor District of Nantong Port. According to the simulation results, the impacts of the general planning scheme on the nearby main waterways（ south waterway of Lanshayang, middle waterway of Lanshayang, north waterway of Lanshayang, Xiaoyanggang waterway） are analyzed. The feasibility of the general planning scheme is demonstrated from the point of view of tidal force. The main study conclusions are as follows： （1）The tidal force in the engineering sea area is very strong, The tidal current shows itself rectilinear current along the deep channels and keeps the present landform pattern of shoals mad deep channels. （2）The general planning scheme of Yangkou Harbor District of Nantong Port has little influence on tidal force in the nearby main waterways, main waterways will remain alive and the general planning scheme is feasible.