长江下游张南上浅区航道整治效果评价

发布时间：2018-02-24 03:27

本文关键词： 水路运输航道整治浅滩效果评价张家洲南港　出处：《水利水运工程学报》2015年02期 　论文类型：期刊论文

【摘要】：张家洲南港上浅区是长江下游著名的浅险水道之一,实施航道整治工程前,水道枯水期航道条件恶劣,航道浅情和船舶事故频发,通航安全难以保证,航道建设、管理与维护难度大。介绍了张家洲水道基本情况和航道整治工程概况,分析了张家洲南港上浅区航道整治工程前后河势条件、航道条件的变化以及整治建筑物的稳定性,对工程方案、工程结构型式及工程实施综合效果进行了评价,总结了工程实施的经验,并对整治工程的后续维护与管理提出了建议。分析认为工程实施后,河势格局更趋稳定,南、北港汊道分流比变化不大,4 m线全线贯通,5 m线间断长度明显缩短,水深年际波动趋于稳定,通航条件明显改善,对下浅区的冲淤影响不大,整治建筑物总体保持稳定,达到了预期整治目标,完全能够满足4.5 m×200 m×1 050 m的航道设计标准。
[Abstract]:The upper shallow area of the South Port of Zhangjiazhou is one of the famous shallow and dangerous waterways in the lower reaches of the Yangtze River. Before the waterway regulation works were carried out, the waterway conditions were poor during the dry season, the shallow waterway conditions and ship accidents occurred frequently, the navigation safety was difficult to guarantee, and the waterway construction was difficult. It is very difficult to manage and maintain Zhangjiazhou waterway. This paper introduces the basic situation of Zhangjiazhou waterway and the general situation of waterway regulation project, analyzes the river regime condition, the variation of waterway condition and the stability of the regulation building before and after the waterway regulation project in the south port of Zhangjiazhou. This paper evaluates the project plan, the structure type and the comprehensive effect of the project implementation, summarizes the experience of the project implementation, and puts forward some suggestions for the subsequent maintenance and management of the regulation project. The analysis shows that the river regime pattern will become more stable after the project is implemented. In the south and north ports, the diversion ratio is not changed much. The length of the discontinuity of the 5 m line through the whole line along the 4 m line is obviously shortened, the interannual fluctuation of water depth tends to be stable, the navigable condition is obviously improved, the scour and siltation of the lower shallow area is not affected much, and the regulation building is kept stable. The expected regulation target has been achieved, and the design standard of 4.5 m 脳 200 m 脳 1 050 m can be fully satisfied.
【作者单位】：长江航运规划研究中心;
【分类号】：U617

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