A simplified method for the determination of vertically loaded pile-soil interface parameters in layered soil based on FLAC3D

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• 作者：Jiu-Jiang Wu ; Yan Li ; Qian-Gong Cheng…
• 关键词：determination of interface parameters ; pile ; soil interaction ; FLAC3D ; sensitivity analysis ; layered soil
• 刊名：Frontiers of Architecture and Civil Engineering in China
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：10
• 期：1
• 页码：103-111
• 全文大小：1,300 KB
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• 作者单位：Jiu-Jiang Wu (1) (2)
  Yan Li (2)
  Qian-Gong Cheng (2)
  Hua Wen (1)
  Xin Liang (2) (3)
  
  1. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, 621010, China
  2. Department of Geological Engineering, Southwest Jiaotong University, Chengdu, 610031, China
  3. Faculty of Civil Engineering, Guangxi University of Science and Technology, Liuzhou, 545006, China
  
• 刊物类别：Engineering
• 刊物主题：Civil Engineering
  Cities, Countries and Regions
  Chinese Library of Science
  
• 出版者：Higher Education Press, co-published with Springer-Verlag GmbH
• ISSN：1673-7512

文摘

The numerical analysis of pile-soil interaction commonly requires a lot of trial works to determine the interface parameters and the accuracy cannot be ensured normally. Considering this, this paper first conducts a sensitivity analysis to figure out the influence of interface parameters on the bearing behavior of a single pile in sand. Then, a simplified method for the determination of pile-soil interface parameters in layered soil is proposed based on the parameter studies. Finally, a filed loading test is used for the validation of the simplified method, and the calculated results agree well with the monitoring data. In general, the simplified method proposed in this paper works with higher accuracy and consumes less time compared with the traditional trial works, especially on the determinations of interfacial cohesive and interfacial friction angle. Keywords determination of interface parameters pile-soil interaction FLAC3D sensitivity analysis layered soil