Lateral dynamic responses of coastal group piles considering pile‒water‒soil interactions

Wu, Tao; Galindo, Rubén; Sun, Hong‒lei; Cai, Yuan‒qiang

doi:10.1016/j.oceaneng.2023.115997

Cited by 3 publications

(1 citation statement)

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“…The modeling outcomes reveal that factors such as water depth, pile dimensions, and soil properties exert significant influence on the response of offshore pile vertical vibration. In the literature [4], an analytical framework is formulated to assess the dynamic impedance of pile groups comprising an arbitrary number of cylindrical piles interconnected by a rigid cap. The solution takes into account the interplay between the secondary ground wave effects transmitted via pile-soil vibration and the hydrodynamic pressure arising from the pile-water interaction.…”

Section: Introductionmentioning

confidence: 99%

Research on the Postural Stability of Underwater Bottom Platforms with Different Burial Depths

Wei,

Li,

et al. 2024

Sensors

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The bottom platform is an important underwater sensor that can be used in communications, early warning, monitoring, and other fields. It may be affected by earthquakes, winds, waves, and other loads in the working environment, causing changes in posture and affecting its sensing function. Therefore, it is of practical engineering significance to analyze the force conditions and posture changes in the bottom platform. In order to solve the problem of postural stability of the underwater bottom platform, this paper establishes a fluid and structural simulation model of the underwater bottom platform. First, computational fluid dynamics (CFD) technology is used to solve the velocity distribution and forces in the watershed around the bottom platform under a 3 kn ocean current, where the finite element method (FEM) numerical calculation method is used to solve the initial equilibrium state of the bottom platform after it is buried. On this basis, this paper calculates the forces on the bottom platform and the posture of the bottom platform at different burial depths under the action of ocean currents. Additionally, the effects of different burial depths on the maximum displacement, deflection angle, and postural stability of the bottom platform are studied. The calculation results show that when the burial depth is greater than 0.6 m, and the deflection angle of the bottom platform under the action of the 3 kn sea current is less than 5°, the bottom platform can maintain a stable posture. This paper could be used to characterize the postural stability of underwater bottom platforms at different burial depths for the application of underwater sensors in ocean engineering.

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Section: Introductionmentioning

confidence: 99%