首页|Characterization of sand convective motions at a vertical wall subjected to long-term cyclic loading

Characterization of sand convective motions at a vertical wall subjected to long-term cyclic loading

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By conducting a two-dimensional experimental study,this paper aims to enhance the understanding of the mech-anism of sand convective motions in the vicinity of a wall subjected to long-term cyclic lateral loadings.The experimental tests were conducted in a rectangular sandbox with a transparent front-wall,through which the process of sand particle motions could be recorded by using a high-resolution digital camera.The images were processed with a high time-resolved PIV(Particle Image Velocimetry)system.Based on the experimental data,this work(1)presents the sand flow field in the convective zones;(2)provides means to describe the convection mechanism;(3)proposes the relationships between the loading conditions and dimensions of the region with intense sand movement;and(4)elaborates the similarity of the sand flow velocity structure within the sand convective zones.

VibrationSoil/structure interactionDeformationParticle image velocimetryLaboratory tests

Dawei Guan、Jialong Li、Yee-Meng Chiew、Jisheng Zhang

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Key Laboratory of Ministry of Education for Coastal Disaster and Protection,Hohai University,Nanjing 210024,China

College of Harbour,Coastal and Offshore Engineering,Hohai University,Nanjing 210024,China

Shanghai Investigation,Design and Research Institute Co.,Ltd,Shanghai 200335,China

School of Civil and Environmental Engineering,Nanyang Technological University,Singapore 639798,Singapore

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国家自然科学基金国家自然科学基金国家自然科学基金

521221095192010501352071127

2024

10.1016/j.fmre.2022.04.015

自然科学基础研究(英文)

自然科学基础研究(英文)

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年,卷(期)：2024.(2)
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