Longitudinal vibration of pile in layered soil based on Rayleigh-Love rod theory and fictitious soil-pile model

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• 作者：Shu-hui Lü ; Kui-hua Wang ; Wen-bing Wu …
• 关键词：viscoelastic pile ; layered soil ; longitudinal vibration ; fictitious soil ; pile ; transverse inertia effect
• 刊名：Journal of Central South University of Technology
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：22
• 期：5
• 页码：1909-1918
• 全文大小：1,450 KB
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• 作者单位：Shu-hui Lü (1)
  Kui-hua Wang (1)
  Wen-bing Wu (2)
  C. J. Leo (3)
  
  1. Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education (Zhejiang University), Hangzhou, 310058, China
  2. Engineering Faculty, China University of Geosciences, Wuhan, 430074, China
  3. School of Computing, Engineering and Mathematics, University of Western Sydney, Locked Bag 1797, Penrith, Sydney, NSW, 2751, Australia
  
• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Metallic Materials
  Chinese Library of Science
  
• 出版者：Central South University, co-published with Springer
• ISSN：2227-5223

文摘

The dynamic response of pile in layered soil is theoretically investigated when considering the transverse inertia effect. Firstly, the fictitious soil-pile model is employed to simulate the dynamic interaction between the pile and the soil layers beneath pile toe. The dynamic interactions of adjacent soil layers along the vertical direction are simplified as distributed Voigt models. Meanwhile, the pile and fictitious soil-pile are assumed to be viscoelastic Rayleigh-Love rods, and both the radial and vertical displacement continuity conditions at the soil-pile interface are taken into consideration. On this basis, the analytical solution for dynamic response at the pile head is derived in the frequency domain and the corresponding quasi-analytical solution in the time domain is then obtained by means of the convolution theorem. Following this, the accuracy and parameter value of the hypothetical boundaries for soil-layer interfaces are discussed. Comparisons with published solution and measured data are carried out to verify the rationality of the present solution. Parametric analyses are further conducted by using the present solution to investigate the relationships between the transverse inertia effects and soil-pile parameters.