水道港口2025，Vol.46Issue(3)：398-406,9.
长江口南槽河床演变特征及航道治理策略研究
Study on morphological evolution characteristics and navigation channel regulation strategies of the south passage in the Yangtze Estuary
摘要
Abstract
The rapid reduction in sediment supply from the Yangtze River catchment and the construction of water-related engineering projects have influenced the overall river regime of the estuary.The paper conducted a systematic analysis of recent changes in the overall river regime of the Yangtze Estuary based on field-measured data and the varying water-sediment boundary conditions.The research focused on the evolutionary trends of the south passage riverbed and navigational obstructions,proposing regulating principles and strategies for the Second Phase Project of the South Passage Navigation Channel Regulation.The results indicate that the overall pattern of'three-level bifurcation and four outlets to the sea'in the Yangtze Estuary has approached stabilization.The evolution and development trends of the South Passage riverbed are generally favorable for channel construction and maintenance.Unfavorable factors remain in the bar section of the South Passage,including the downstream extension of the Jiangya-Nansha Shoal,divergence of tidal flow paths for flood and ebb,and insufficient sediment transport capability.Based on a comprehensive analysis,a multi-objective governance framework that integrates channel regulation and ecological protection was proposed,along with specific regulation strategies emphasizing'shore protection,channel stabilization,flow diversion,and sediment retention.'.关键词
长江口/南槽/河床演变/航道治理/治理策略Key words
Yangtze Estuary/south passage/morphological evolution/channel regulation/regulation strategies分类
交通工程引用本文复制引用
陈复奎..长江口南槽河床演变特征及航道治理策略研究[J].水道港口,2025,46(3):398-406,9.基金项目
国家重点研发计划项目(2024YFB2605900) （2024YFB2605900）
