Computational method for the maximum pressure and maximum load on tidal bores impact pile columns

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Journal of Vibration and Shock ›› 2025, Vol. 44 ›› Issue (6) : 90-103.

SHOCK AND EXPLOSION

Computational method for the maximum pressure and maximum load on tidal bores impact pile columns

WANG Xu1,2，QU Ke*1,2,YANG Yuanping2,3，WANG Chao1

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Abstract

Based on the open source programs OpenFOAM and wave2Foam, we construct a high-precision numerical flume to solve the Reynolds-averaged Navier-Stokes equations. First, a high-precision tidal bore numerical flume is carried out to calculate the tidal bore, propagation, evolution, and the ability to interact with pile and column bodies. Then, we numerically calculate the change rules of surge propagation, evolution, and structural dynamic response characteristics of the pile column during the interaction between the tidal bore, and the pile column, and elucidate the complex hydrodynamic characteristics of the tidal bore, when it interacts with the pile column in different forms. Systematically analyze the influence of different tidal bore, heights, pre-tidal water depths, inclined angle and direction of the pile body on the hydrodynamic load and maximum impact pressure of the tidal bore,. Finally, based on the systematic collation of the maximum hydrodynamic load and maximum impact pressure, combined with the theoretical characterization, the theoretical calculation formulas of the maximum hydrodynamic load and maximum impact pressure are proposed to be suitable for the tidal bore, impacting on the pile columns in different forms.

Key words

Tidal bore / bridge pile / Hydrodynamic properties;theoretical analysis / wave2Foam

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WANG Xu1, 2, QU Ke1, 2, YANG Yuanping2, 3, WANG Chao1. Computational method for the maximum pressure and maximum load on tidal bores impact pile columns[J]. Journal of Vibration and Shock, 2025, 44(6): 90-103

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