河流冲刷下桥梁桩基稳定性三维仿真
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U422

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Three Dimensional Simulation Analysis of Bridge Pile Foundation Stability under River Erosion
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    摘要:

    传统方法在进行桥梁桩基稳定性仿真分析时,受到桥梁桩基数据采集维度的限制,导致桥梁桩基稳定性分析结果的可信度较低。为此,本文引入三维分析方法对河流冲刷下桥梁桩基稳定性进行研究。构建稳定性计算指标与判断标准,搭建桥梁桩基三维本构、桥梁桩基环境和三维河流冲刷环境子模型,组建成桥梁桩基稳定性计算数字模型。计算河流冲刷力,并以此作为模型的输入量,实现桥梁桩基稳定性分析。将设计的稳定性分析方法应用到实际工程项目中,设计对比实验验证不同河流冲刷条件下桥梁桩基的稳定性分析结果。结果表明,本文方法的可信度远远高于其他方法,稳定性更高。

    Abstract:

    IThe traditional method is limited by the data collection dimension of bridge pile foundation in the simulation analysis of bridge pile foundation stability, which results in low reliability of bridge pile foundation stability analysis results.Therefore, this paper introduces three-dimensional analysis method to study the stability of bridge pile foundation under river erosion.The stability calculation index and judgment standard are constructed, and the three-dimensional constitutive model of bridge pile foundation, bridge pile foundation environment and three-dimensional River Scouring environment are built, and the bridge pile foundation stability calculation digital model is established.The river scour force is calculated and used as the input of the model to realize the stability analysis of bridge pile foundation.The stability analysis method is applied to the actual project, and the stability analysis results of bridge pile foundation under different River Scouring conditions are verified by design comparison experiment.The results show that the credibility of this method is much higher than other methods, and the stability is higher.

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李大龙,齐洋,杨竟. 河流冲刷下桥梁桩基稳定性三维仿真[J]. 科学技术与工程, 2021, 21(21): 9102-9107.
Li Dalong, Qi Yang, Yang Jing. Three Dimensional Simulation Analysis of Bridge Pile Foundation Stability under River Erosion[J]. Science Technology and Engineering,2021,21(21):9102-9107.

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  • 收稿日期:2020-09-25
  • 最后修改日期:2021-02-07
  • 录用日期:2021-02-16
  • 在线发布日期: 2021-08-11
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