摘要
两坝间航道水域位置特殊,通航条件复杂,近年来先后制定了《三峡—葛洲坝两坝间航道汛期通航流量标准》试运行方案和《长江三峡—葛洲坝水利枢纽两坝间航道汛期通航流量标准》。为了全面掌握最新执行的《长江三峡—葛洲坝水利枢纽两坝间航道汛期通航流量标准》实施应用情况和科学评估实施效果,分别从标准对比分析、通航船舶上滩能力计算和通航效率分析三个方面进行了综合评估。通过随机抽取部分不同流量级依据原标准限航但依据现标准能够通航的船舶,开展了航行安全验证;通过构建仿真平台,计算了通航船舶在模拟汛期水情、不同标准下的通航艘次和货物通过量,实现了两坝间通航效率分析。结果表明:相比于旧标准,新标准优化了流量级划分和标准控制因素,通航艘次以及货物通过量总体上可实现进一步提升,且增加的艘次能够正常通航,仿真环境下两坝间实现了14.8%的通过艘次提升和11.6%的货物通过量提升,即新标准的实施有助于提升两坝间整体通过能力。
The navigational conditions of channel between the Three Gorges-Gezhouba dam is complex and the location of the water area has special significance,the navigation management department has successively formulated the trial operation plan of the"Navigation flow standards for the navigation channel between the Three Gorges and Gezhouba dams during the flood season"(hereinafter referred to as"Standard 16")and the"Navigable discharge standard of the waterway between the Three Gorges Dam and the Gezhouba Dam during flood season"(hereinafter referred to as"Standard 20").To comprehensively grasp the implementation and application of"Standard 20"and assessment its effect scientifically,the standard comparison analysis,navigation vessels on the beach capacity calculation and navigation efficiency analysis were evaluated separately.The vessels that were limited to navigation under"Standard 16"but can navigate under"Standard 20"at different flow levels were selected randomly,the navigation safety verification was carried out;a simulation platform was built,the number of navigable vessels and the weight of cargo were calculated under the simulated flood water conditions and different standards,the navigable efficiency analysis between the two dams was realized.The results indicate that:compared with the"Standard 16",the"Standard 20"optimize the division of flow level and control factors of standard,the number of navigable vessels and the cargo throughput in general can be further improved,and the increased number of vessels can navigate normally.Under the simulation environment between the two dams,the number of navigable vessels and the cargo throughput were increased by 14.8%and 11.6%,respectively.Thus,the implementation of the"Standard 20"helps to improve the overall traffic capacity of the waterway between the Three Gorges Dam and the Gezhouba Dam.
作者
孟鑫
何远鑫
肖玉华
罗亮
MENG Xin;HE Yuanxin;XIAO Yuhua;LUO Liang(Three Gorges Navigation Authority,Yichang 443000,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Ministry of Education Key Laboratory of High Performance Ship Technology,Wuhan 430063,China)
出处
《水道港口》
2024年第3期393-399,共7页
Journal of Waterway and Harbor
基金
国家自然科学基金项目(52101368)。
关键词
两坝间
标准对比
通航安全
通航效率
waterway between the Three Gorges Dam and the Gezhouba Dam
standard comparison
navigation safety
navigation efficiency
