近年来，长江中游城陵矶至武汉河段（城武段）航道尺度持续提升，但现有通过能力仍滞后于沿江经济发展，为充分发挥黄金水道的黄金效能，更好服务沿江经济社会发展，有必要进行城武段航道尺度提升分析研究。本研究基于新水沙条件下城武段航道的变化特点，利用近十年的水沙观测资料和航道测图，对河段内22个水道的航道条件进行了全面核查，分析了尺度提升的重难点，提出了治理思路和措施建议。研究表明：城武段共有9个问题水道不能全年满足6.0m×200m航道尺度，最低年均保证率为77%，累计存在浅区长度约8.95km（占比3.92%），总体具备水深提升至6.0m的自然条件；问题水道以分汊河型为主，按照“整疏结合、综合治理”的治理思路，通过整治工程适当限制支汊分流，增大主汊水动力，同时利用清水下泄冲刷河槽，配合疏浚手段，辅以智能导助航新技术，可实现航道尺度提升。

In recent years, the scale of the waterway from Chenglingji to Wuhan section (Chengwu section) in the middle reaches of the Yangtze River has continued to improve, but the existing capacity still lags behind the economic development along the river. In order to fully utilize the golden efficiency of the golden waterway and better serve the economic and social development along the river, it is necessary to conduct analysis and research on the scale improvement of the Chengwu section waterway. This study is based on the changing characteristics of the Chengwu section waterway under new water and sediment conditions. Using water and sediment observation data and waterway mapping from the past decade, a comprehensive verification of the waterway conditions of 22 waterways in the river section was conducted. The key and difficult points of scale improvement were analyzed, and governance ideas and measures were proposed. Research shows that there are 9 problematic waterways in the Chengwu section that cannot meet the 6.0m×200m waterway scale throughout the year, with a minimum annual guarantee rate of 77%. The cumulative length of shallow areas is about 8.95km (accounting for 3.92%), and the overall natural conditions for increasing water depth to 6.0m are available; The problem waterway is mainly of the bifurcated river type. According to the governance thoughts of "integration of dredging and comprehensive management", the diversion of branch channels is appropriately restricted through remediation projects to increase the hydrodynamic force of the main channel. At the same time, clear water is used to discharge and wash the river channel. Combined with dredging methods and intelligent navigation technology, the scale of the waterway can be improved.