| 朱政涛,江青蓉,黄 东,李海彬,陈鑫池.水动力数值模型在码头建设方案比选中的应用*[J].水运工程,2025,(2):72-80 |
| 水动力数值模型在码头建设方案比选中的应用* |
| Hydrodynamic numerical model used for schemes comparison of dock construction |
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| DOI： |
| 中文关键词: 水动力数值模型 码头 洪水影响 方案比选 |
| 英文关键词:hydrodynamic numerical model dock flood impact scheme comparison |
| 基金项目:广东省水利科技创新项目(2023-06)；
2023年省科技创新战略专项资金科研项目(sky2023-05) |
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| 中文摘要: |
| 以北江左岸某码头工程为例，采用有限体积法分别建立北江韶关（二）水文站—濛浬水电站长约37.0 km河段的一维水动力模型及工程上下游长约4.6 km河段的二维水动力模型，定量研究不同建设方案下河道行洪水位、流速分布、蓄洪容积的差异。结果表明：当洪水频率在50 a一遇至10 a一遇时，码头工程各方案下河道水位壅高值不超过0.02 m；水流流速和流态变化主要位于码头上游100 m至下游260 m的局部河段，不同方案下河道高流速区域变化较小，主槽动力轴线在工程前后不会发生重大调整；同时在港池清淤疏浚作用下工程后该河段实际蓄洪容积增加。最终从行洪安全及码头货物安全角度考虑，方案2为推荐方案，相关研究方法可为类似码头建设提供科学借鉴。 |
| 英文摘要: |
| Taking a dock project on the left bank of the Beijiang River as an example,the finite volume method is used to establish the one-dimensional hydrodynamic model for the 37.0 km long section of the Shaoguan (II) hydrological station to Mengli hydropower station,and the two-dimensional hydrodynamic model for the 4.6 km long section of the project.A quantitative study is conducted on the differences in flood level,flow velocity distribution,and flood storage capacity of river channels under different construction schemes.The results show that when the flood frequency ranges from once every 50 years to once every 10 years,the increment of flood level is lower than 0.02 m under different schemes.The changes in flow velocity and pattern are mainly concentrated in the local river section from 100 m upstream to 260 m downstream of the dock.However,the changes in high flow velocity areas of the river are relatively small,as well as the changes in the dynamic axis of the main channel.Meanwhile,the actual flood storage capacity of the river has increased under the action of dredging in the harbor.From the perspective of flood safety and cargo safety,scheme 2 is a recommended plan,and relevant research methods can provide scientific reference for similar dock construction plans. |
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