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Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2015, Vol. 16 Issue (8): 630-643    DOI: 10.1631/jzus.A1400329
Civil Engineering     
A new approach for time effect analysis in the settlement of single pile in nonlinear viscoelastic soil deposits
Zhen-ya Li, Kui-hua Wang, Shu-hui Lv, Wen-bing Wu
1MOE Key Laboratory of Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China; 2Research Center of Coastal Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; 3Engineering Faculty, China University of Geosciences, Wuhan 430074, China
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Abstract  A new and simple approach is presented to analyze the time effect in the settlement of single pile and the distributions of pile shaft resistance and pile axial force. First, the viscosity of soil is considered by using a linear damper, and the nonlinear elasticity of pile lateral soil and pile end soil are simulated by using a hyperbola model and idealized elastoplastic model, respectively. Then, the settlement of the pile head, shaft resistance, and axial force along the pile are derived by virtue of a wave equation analysis program based on traveling wave decomposition. Based on the solutions, a parametric study has been undertaken to investigate the influences of the parameters of a pile-soil system on the settlement behavior of a single pile. Finally, the calculated results are compared with the measured results to demonstrate the effectiveness and accuracy of the proposed approach. Note that the presented solution allows for a good prediction of the settlement behavior of a single pile and can provide a reference for the preliminary design of a pile foundation.

Key wordsSettlement      Time effect      Hyperbola mode      Idealized elastoplastic model      Viscosity      Wave equation analysis program     
Received: 26 October 2014      Published: 04 August 2015
CLC:  TU473.1  
Cite this article:

Zhen-ya Li, Kui-hua Wang, Shu-hui Lv, Wen-bing Wu. A new approach for time effect analysis in the settlement of single pile in nonlinear viscoelastic soil deposits. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2015, 16(8): 630-643.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A1400329     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2015/V16/I8/630

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