长江航运高质量发展对策及关键技术挑战

    Measures and key technical challenges for high-quality development of Changjiang River shipping

    • 摘要: 近年来长江航运发展成效显著,干线货运量连续19 a稳居世界第一, 但受上游金沙江“高坝阻隔”、中游三峡枢纽“过坝瓶颈”和荆江“航道梗阻”、下游长江口“超载过饱和”等航运瓶颈制约,长江水运优势和潜力尚未充分发挥。为打通长江航运堵点、卡点,研究提出金沙江下游高坝通航工程、三峡水运新通道工程、荆汉运河工程、长江口航道通过能力提升工程共四大工程对策,通过为金沙江下游梯级枢纽增建高坝通航建筑物,为三峡和葛洲坝枢纽增建万吨级大型船闸,开辟中游从荆州到武汉的高等级人工运河,推进长江口“一主两辅一支”航道体系建设等具体措施,构建从上海到四川攀枝花的长江高标准航道,整体提升长江航运能力。此外,探讨了长江航运建设面临的关键技术挑战,包括高坝通航关键技术、通航建筑物改扩建技术、大型人工运河建设技术,以及生态化与智慧化航道建设技术等,以期为长江航运高质量发展提供科技支撑。

       

      Abstract: In recent years, the Changjiang River shipping has achieved remarkable development, with the mainstream freight volume constantly ranking first in the world for 19 years. However, the advantages and potential of the Changjiang River shipping have not been fully released due to several shipping bottlenecks such as the upstream high dam obstruction of the Jinsha River, the midstream lock bottleneck of the Three Gorges dam and the shallow channel depth of the Jingjiang River, as well as the downstream channel overloading and supersaturation of the Changjiang River estuary. To solve these shipping blockages and jams, four major projects including the High Dam Navigation Project in the downstream of the Jinsha River, the New Navigation Channel Project for the Three Gorges Dam, the Jinghan Canal Project, and the Channel Capacity Enhancement Project for the Changjiang River estuary were proposed. Through adding high dam navigation structures for the hydropower cascades of the downstream Jinsha River, constructing new large ship locks of 10 000 tons for the Three Gorges Dam and Gezhouba Dam, building a high-grade artificial canal from Jingzhou City to Wuhan City, and promoting the construction of the "one main, two auxiliary, and one branch" waterway system at the Changjiang River estuary, so a high standard waterway from Shanghai City to Panzhihua City will be constructed which enhances the overall shipping capacity of the Changjiang River. Moreover, key technical challenges for the Changjiang River shipping development were explored in this paper, involving high dam navigation construction, expansion of navigation structures, construction of large-scale artificial canals, and ecological and intelligent waterway construction, which shows the way for high-quality development of the Changjiang River shipping.

       

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