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潘晓春, 蔡升华, 卢红前, 等. 波流共同作用下桩基局部冲刷计算方法研究与初步验证[J]. 太阳能学报, 2025,(11):629-640.
潘晓春, 蔡升华, 卢红前, et al. 波流共同作用下桩基局部冲刷计算方法研究与初步验证[J]. 2025, (11): 629-640.
潘晓春, 蔡升华, 卢红前, 等. 波流共同作用下桩基局部冲刷计算方法研究与初步验证[J]. 太阳能学报, 2025,(11):629-640. DOI: doi:10.19912/j.0254-0096.tynxb.2024-1160.
潘晓春, 蔡升华, 卢红前, et al. 波流共同作用下桩基局部冲刷计算方法研究与初步验证[J]. 2025, (11): 629-640. DOI: doi:10.19912/j.0254-0096.tynxb.2024-1160.
现有波流共同作用下桩基局部冲刷计算方法存在一些不足
亟待研制波流共同作用下桩基局部冲刷准确可靠的分析计算方法。利用69组波流作用下的桩基局部冲刷物理模型试验数据
结合冲刷主要影响因素分析
采用量纲分析法与多元回归分析法优选变量及其系数。基于12套回归分析成果的精度分析与桩基尺度影响分析
并考虑基础冲刷墩形系数
研制提出波流共同作用下桩基最大局部冲刷计算新公式。研究表明
只采用桩径Froude数制订的单因子计算公式很难获得较高的计算精度;利用12组公开发布的实测资料与6组物模数据进行的验证表明
该文公式优于韩海骞波流公式
更明显优于其余方法。该文公式适用于细、中砂质海床波流共同作用下桩基局部冲刷分析计算
但今后仍需持续积累桩基冲刷与海洋水文资料予以完善。
The existing calculation methods for local scour around pile foundation under the combined action of waves and current have some shortcomings
and there is an urgent need to develop accurate and reliable analysis and calculation methods for local scour around pile foundation under the combined action of waves and current. According to 69 sets of physical model test data on local scour around pile foundation under wave and current effects
combined with analysis of the main influencing factors of scour
dimensional analysis and multiple regression analysis were used to select variables and their coefficients. Based on the accuracy analysis of 12 sets of regression analysis results and the analysis of the impact of pile foundation scale
and considering the pier-shape coefficient for foundation scouri
a new formula for calculating the maximum local scour around pile foundation under the combined action of waves and current is developed. Research has shown that a single factor calculation formula based solely on the Froude number of pile diameter is difficult to achieve high calculation accuracy; The verification using 12 sets of publicly released measured data and 6 sets of physical model data shows that the formula in this paper is superior to Han Haiqian's wave current formula
and more significantly superior to other methods. The formula in this article is applicable for the analysis and calculation of local scour around pile foundation under the combined action of waves and current on fine and medium sandy seabed. However
in the future
it is still necessary to continuously accumulate pile scour and marine hydrological data for improvement.
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