Simplified Calculation Method for Settlement Behavior of Vertically Loaded Pile in Layered Soil

被引：0
|
作者：
Wang L. [1 ]
Wu W. [1 ]
Mei G. [1 ,2 ]
Wen M. [1 ,3 ]
Xu M. [2 ]
机构：
[1] Faculty of Engineering, China University of Geosciences, Wuhan
[2] College of Civil Engineering and Architecture, Guangxi University, Nanning
[3] School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2022年 / 49卷 / 07期
基金：
中国国家自然科学基金;
关键词：
fictitious soil-pile model; hyperbolic model; pile axial force; pile lateral friction resistance; settlement behavior; vertically loaded pile;
D O I：
10.16339/j.cnki.hdxbzkb.2022088
中图分类号：
学科分类号：
摘要：
Based on the stress-bubble fictitious soil-pile model and the improved hyperbolic model considering the initial critical frictional resistance of the pile-soil interface, a simplified method for calculating the settlement of vertically loaded single pile is proposed, which can consider the effect of stress diffusion at the pile tip and the initial critical frictional resistance at the pile-soil interface. Firstly, the influence degree of the model parameters on the settlement of a single pile is analyzed and discussed by using the present calculation method, and the reasonable value ranges of model parameters are given. Then, the rationality of the present calculation method is verified by comparing the results obtained using the present calculation method with the field measured data. Furthermore, the proportion of pile compression and pile tip soil settlement, the distribution law of pile axial force and the characteristics of pile lateral friction resistance under different pile top loads are further analyzed and studied. The present calculation method has clear parameters and simple application, which can provide a more accurate settlement value for pile foundation design, thus having a wide engineering application prospect. © 2022 Hunan University. All rights reserved.
引用
收藏
页码：197 / 204
页数：7
相关论文
共 28 条
  • [1] SEED H B, REESE L C., The action of soft clay along friction piles, Transactions of the American Society of Civil Engineers, 122, 1, pp. 731-754, (1957)
  • [2] CHEN L Z, LIANG G Q, ZHU J Y, Et al., Analytical calculation of axial loadig-settlement curve of piles, Chinese Journal of Geotechnical Engineering, 16, 6, pp. 30-38, (1994)
  • [3] POULOS H G., Analysis of the settlement of pile groups, Géotechnique, 18, 4, pp. 449-471, (1968)
  • [4] BUTTERFIELD R, BANERJEE P K., The elastic analysis of compressible piles and pile groups, Géotechnique, 21, 1, pp. 43-60, (1971)
  • [5] RANDOLPH M F, WROTH C P., An analysis of the vertical deformation of pile groups, Géotechnique, 29, 4, pp. 423-439, (1979)
  • [6] GAO M, GAO G Y, YANG C B, Et al., Analytical solution for settlement of group piles in layered ground based on shear displacement method, Rock and Soil Mechanics, 31, 4, pp. 1072-1077, (2010)
  • [7] COMODROMOS E M, PAPADOPOULOU M C, RENTZEPERIS I K., Pile foundation analysis and design using experimental data and 3D numerical analysis, Computers and Geotechnics, 36, 5, pp. 819-836, (2009)
  • [8] ZHOU H B., Numerical simulation of effects of mud cake and bottom sediment on bearing capacity of bored pile, Rock and Soil Mechanics, 28, 5, pp. 956-960, (2007)
  • [9] WANG K H, LU S H, WU W B, Et al., A new calculation method for the settlement of single pile based on virtual soil-pile model in layered soils, Engineering Mechanics, 30, 7, pp. 75-83, (2013)
  • [10] WANG K H, LUO Y J, WU W B, Et al., Calculation method for settlement of single pile considering stress dispersion of pile end soil, Journal of Zhejiang University (Engineering Science), 47, 3, pp. 472-479, (2013)
123