| 蔡 创,李 林,李 科,王多银,许光祥.沅水桃源枢纽左岸船闸桥区船模通航条件试验研究*[J].水运工程,2024,(3):74-81 |
| 沅水桃源枢纽左岸船闸桥区船模通航条件试验研究* |
| Navigation conditions of ship model test in left bank lock bridge area of Yuanshui Taoyuan hub |
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| DOI： |
| 中文关键词: 二线船闸 船模试验 通航条件 桥位 |
| 英文关键词:second-line lock ship model test navigable condition bridge location |
| 基金项目:重庆市研究生联合培养基地建设项目(JDLHPYJD2018001) |
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| 中文摘要: |
| 沅江大桥通航环境十分复杂，原大桥通航孔布置不合理，严重制约了桃源枢纽二线船闸扩建工程建设。针对桥区通航条件差的问题，对其左岸桥梁通航孔布置方案进行船模试验研究，采用定床河工模型和小尺度船模试验相结合，并从船模试验的舵角、漂角和航速等航行参数进行综合分析，结果表明：在相同通航总净宽的情况下，双孔双向要优于双孔单向；桥梁通航孔右移可降低一线船闸船舶下行过桥难度，但会增加二线船闸船舶上行过桥的难度。建议左岸新建桥梁通航孔净宽应不小于220 m，桥位相比于现状桥梁右移约75 m，采用双孔双向，两线船闸分槽航行的方式。 |
| 英文摘要: |
| The navigation environment of Yuanjiang Bridge is very complicated，and the layout of the original bridge is unreasonable，which seriously restricts the construction of the second-line lock expansion project of Taoyuan Hub.In view of the problem of poor navigable conditions in the bridge area，the layout scheme of the bridge navigable hole on the left bank is studied，using the method of combining the bed river model and small scale ship model test，and comprehensively analyzing the steering angle，drift angle and speed of the ship model test.The results show that under the same total navigation width，the double hole two-way is better than the double hole one-way.The right movement of the navigable hole of the bridge can reduce the difficulty of ships crossing the bridge downstream at the first-line lock，but it will increase the difficulty of ships crossing the bridge upstream at the second-line lock.It is suggested that the net width of the navigable hole of the new bridge on the left bank should not be less than 220 m.The bridge position should be shifted to the right by about 75 m compared to the current bridge.The navigation method should be adopted with double holes two-way and two line locks divided into slots. |
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