非线性粘弹性土中单桩沉降时间效应分析新方法

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Bibliographic Details
Published in浙江大学学报：A卷英文版 Vol. 16; no. 8; pp. 630 - 643
Main Author Zhen-ya LI Kui-hua WANG Shu-hui LV Wen-bing WU
Format Journal Article
LanguageEnglish
Published 2015
Subjects
双曲线模型
时间效应
沉降
波动分析程序
理想弹塑性模型
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Bibliography:Zhen-ya LI, Kui-hua WANG, Shu-hui LV, Wen-bing WU（1 MOE Key Laboratory of Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China;2 Research Center of Coastal Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China;3 Engineering Faculty, China University of Geosciences, Wuhan 430074, China）
Settlement, Time effect, Hyperbola mode, Idealized elastoplastic model, Viscosity, Wave equation analysis program
33-1236/O4
A new and simple approach is presented to analyze the time effect in the settlement of single pile and the distribu- tions of pile shaft resistance and pile axial force. First, the viscosity of soil is considered by using a linear damper, and the non- linear 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 under- taken 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 ap- proach. 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.
ISSN:1673-565X
1862-1775