盐邵线扬州段通航分析与仿真研究

Analysis and simulation of navigation in Yangzhou segment of Yanshao waterway

盐邵线扬州段航道条件差,运行复杂,易形成航道堵塞。分析造成航道拥堵的主要原因,提出相应对策,同时,构建多节点航运调度仿真模型,引入调度准则和评判标准,模拟研究盐邵线扬州段的船舶航行情况及调度措施效果。结果表明:盐邵线扬州段为多节点航道,盐邵船闸的通过能力为制约全线通过能力的关键;造成盐邵线航道拥堵的主要原因是同向船舶追越、异向节点交会,因此应借助过闸船舶运行调度来减少航道堵塞现象的发生;通过多节点航运调度模型,可进行盐邵线航运调度模拟和优化,尽管优化方案对船舶耗费时间减少效果不明显,但可以有效降低盐邵线的拥堵风险,后者对盐邵线调度更具指导意义。

With the unfavorable navigation condition and complicated sailing environment, phenomenon like waterway block arises frequently in Yanshao waterway of Yangzhou segment. This article analyzes the main reason of waterway block and puts forward some corresponding countermeasures and a joint simulation scheduling model of multi-bottleneck is established at the same time. Besides, scheduling rules for vessels and evaluation criteria for this model are introduced in this paper. Furthermore, this model simulates ship operation and studies the effects of the improvement measures on Yanshao waterway of Yangzhou segment. Results show that, Yanshao waterway of Yangzhou segment is a multi-bottleneck nodes channel, Yan lock is the most critical factor in determining the overall through capabilities of Yanshao waterway. Vessels overtaking in the same direction and encountering in different direction at nodes are the primary causes of waterway block in Yanshao waterway of Yangzhou segment; optimizing management of vessels passing lock can reduce the phenomenon of waterway block. Simulation results prove that the joint simulation scheduling model of multi-bottleneck can optimize the management of vessels in Yanshao waterway, the cost-time of vessels in Yanshao waterway is rarely decreased despite, but the risk of channel congestion is reduced effectively, the latter has more guiding significant for scheduling in Yanshao waterway.