| 刘江林,王 平.弯曲河段复线船闸引航道方案优化设计*[J].水运工程,2025,(1):129-135 |
| 弯曲河段复线船闸引航道方案优化设计* |
| Optimization design of approach channel scheme for double track ship locks in curved river |
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| DOI： |
| 中文关键词: 临淮岗复线船闸 引航道 水流条件 物理模型试验 |
| 英文关键词:Linhuaigang double track ship lock approach channel water flow condition physical model test |
| 基金项目:中交第二航务工程勘察设计院科技研发项目（RP2022005653） |
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| 中文摘要: |
| 针对临淮岗复线船闸上游采用直线引航道布置方案征地面积大、开挖量大的问题，提出分离式引航道布置方案和优化过闸效率后的折线形引航道方案。针对上下游引航道水流条件复杂的问题，采用物理模型试验对引航道设计方案进行优化和验证，试验表明：原设计方案上、下游引航道横向水流速度超标，下游引航道回流较为严重；上、下游横向水流主要受引航道宽度控制，加宽引航道宽度至65 m可有效改善横向水流条件。针对下游水流条件局部不满足要求的问题，采用船模操纵仿真试验验证所需航行宽度，经验证平槽泄水水位下城西湖退水闸流量小于300 m3/s，最低通航水位下城西湖退水闸流量小于100 m3/s时，满足规范水流条件的引航道宽度45 m，超过船舶安全通航所需通航宽度。 |
| 英文摘要: |
| To the problems of large land acquisition area and large excavation volume caused by the use of a straight approach channel layout scheme upstream of the Linhuaigang double track ship lock,a separated approach channel layout scheme and a broken line approach channel scheme optimized for lock efficiency are proposed.To the problem of complex water flow conditions in the upstream and downstream approach channels,physical model experiments are used to optimize and verify the design scheme of the approach channels.The experiments show that the lateral water flow velocity in the original design scheme exceeds the standard,and the downstream approach channels experience severe backflow.The lateral water flow in the upstream and downstream is mainly controlled by the width of the approach channel.Expanding the width of the approach channel to 65 m can effectively improve the lateral water flow conditions.To the problem of local non-compliance with downstream water flow conditions,a ship model operation simulation test is used to verify the required navigation width.After verification,the flow rate of the Chengxi Lake drainage gate is less than 300 m3/s under the flat channel discharge water level,and when the flow rate of the Chengxi Lake drainage gate is less than 100 m3/s under the lowest navigation water level,the approach channel width that meets the standard water flow conditions is 45 m,exceeding the required navigation width for safe navigation of ships. |
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