| 张其一,孟祥飞,陈 凯,郭东起.基于VOF方法的码头群桩结构流固耦合动力响应数值模拟[J].水运工程,2025,(2):178-183 |
| 基于VOF方法的码头群桩结构流固耦合动力响应数值模拟 |
| Numerical simulation of fluid-solid coupling dynamic response of pile group structure of wharf based on VOF method |
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| DOI： |
| 中文关键词: 群桩结构 VOF方法 双向耦合 结构动力响应 |
| 英文关键词:pile group structure VOF method bidirectional coupling structural dynamic response |
| 基金项目: |
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| 中文摘要: |
| 高桩结构是一种港口海岸码头广泛应用的结构形式，其在波浪作用下的结构动力响应是保证码头稳定运行的关键因素。使用ABAQUS软件建立码头三维模型、STAR-CCM+软件建立波浪水槽，采用k-ε湍流模型和流体体积(VOF)运动界面追踪方法模拟波浪，实现码头群桩结构和波浪之间双向耦合的模拟。由于桩距与桩直径的比值大于4，不需要考虑桩间相互影响，对比模型试验误差低于5%精度可以满足要求。结果表明，码头群桩在波高为0.3、0.4、0.5 m下的最大受力和位移均能满足规范要求，桩顶处位移最大为0.66 mm；最大应力产生在群桩前排桩底，为152.4 kPa，桩底区域混凝土易发生失稳破坏，实际工程中应格外关注。 |
| 英文摘要: |
| High pile structure is a kind of structure widely used in port and coast.Its dynamic response under wave action is the key factor to ensure the stable operation of the wharf.The software ABAQUS is used to build a three-dimensional wharf model and a wave flume with STAR-CCM+.The k-ε turbulence model and volume of fluid (VOF) motion interface tracking method are used to simulate waves,and the simulation of bidirectional coupling between wharf pile groups and waves is realized.Since the ratio of pile spacing to pile diameter is greater than 4,the interaction between piles does not need to be considered,and the error of the comparison model test is less than 5%,which can meet the requirements.The results show that the maximum force and displacement of the wharf pile groups under wave heights of 0.3 m,0.4 m,and 0.5 m can meet the code requirements.The displacement at the top of the pile is the largest,which is 0.66 mm.The maximum stress occurs at the bottom of the front row of piles in the pile group,which is 152.4 kPa.The concrete in the pile bottom area is prone to instability and failure,and special attention should be paid in practical engineering. |
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