长江口北港航道治理方案评估

通过对长江口北港通航现状及河势演变分析,提出拦门沙河段水深不足是影响北港航道通航条件的主要因素。北港航道治理方案还应充分考虑与周边涉水工程、防洪防潮、水资源利用和生态环境保护的关系及影响,利用潮流数学模型对治理方案实施效果进行评估。结果表明,在航道流场动力方面,航道整治效果良好,辅以疏浚可实现航道规划目标。

Evaluation on regulation scheme of north channel in the Yangtze River estuary

Based on the analysis of the navigation status and current river regime evolution of the north channel in the Yangtze River estuary,this paper points out that water depth deficiency in the mouth bar section is the main factor affecting the navigation conditions in the north channel.The regulation project scheme of the north channel should consider the relationship and influence of surrounding water projects,flood control and damp proof,water resource utilization and ecological environment protection.This paper applies the flow mathematical model to evaluate the regulation effect of the scheme.The results show that the channel regulation effect is good in terms of flow field dynamics,the channel planning objectives can be achieved by dredging.