Effect of supplementary pile reinforcement on the vertical bearing characteristics of pile foundation

DOI

10.2991/978-94-6463-728-1_24How to use a DOI?

Keywords

supplementary pile reinforcement; finite element simulation; vertical bearing characteristics

Abstract

To investigate the impact of supplementary pile reinforcement on the vertical bearing characteristics of the pile foundation, this study employs finite element simulation to analyze the settlement and stress before and after reinforcement. The results show that the settlement of the pile foundation decreases following reinforcement, leading to improved bearing capacity and rebound rate. Both the original and supplementary piles exhibit consistent force distribution, with a post-reinforcement rebound rate increases from 13.73% to 37.32%. The ultimate bearing capacity is approximately three times that of the unreinforced case. Simultaneously, due to predominant load-sharing by the post-added pile, the axial force of the pile foundation is minimal, resulting in a concentrated axial force curve at its base. Furthermore, in comparison to the unreinforced pile foundation, both the end bearing capacity and its proportion are significantly diminished in the reinforced pile foundation. The maximum end bearing capacity amounts to 7.45kN, accounting for merely 6.21%. However, owing to transmission of bending moment from the pile cap to the reinforced pile foundation, there exists a notable disparity in stress distribution across both sides of the reinforced pile foundation.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Ningning Liu
AU  - Xiyin Zhang
AU  - Wanping Wang
AU  - Xuhao Lv
AU  - Senhu Zuo
PY  - 2025
DA  - 2025/05/19
TI  - Effect of supplementary pile reinforcement on the vertical bearing characteristics of pile foundation
BT  - Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)
PB  - Atlantis Press
SP  - 233
EP  - 241
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-728-1_24
DO  - 10.2991/978-94-6463-728-1_24
ID  - Liu2025
ER  -