Sensitivity Analysis of Factors Affecting Pile Bearing Capacity Based on Finite Element Simulation

DOI

10.2991/978-94-6463-726-7_63How to use a DOI?

Keywords

Pile bearing capacity; Finite element analysis; Computer modeling; Sensitivity analysis; Static load test

Abstract

With the continuous development of high-rise buildings, increasing use of pile foundations in actual projects. And the pile foundation is characterized by strong bearing capacity, high stability and good seismic performance. As pile foundations are often buried deep underground, the bearing capacity of pile foundations can be affected by various factors. Therefore, analyzing and studying the sensitivity of the peripile soil to the influence of pile bearing capacity is of great significance to the analytical study of pile bearing capacity. In this paper, combined with the actual project, using ABAQUS finite element analysis software for modeling, using the control variable method to change each parameter of the soil around the pile, to analyze the load-displacement and displacement changes of the top of the pile. Then the sensitivity formula is introduced to analyze and calculate the sensitivity of different parameters of peripile soil on the impact of pile bearing capacity for sensitivity analysis study. It was found that the changes in pile top displacement obtained by varying the density, modulus of elasticity, Poisson's ratio, cohesion, angle of internal friction and coefficient of friction of the soil around the pile were -2.41mm, 3.14mm, 5.03mm, -0.04mm, 0.26mm and 2.6mm respectively. The corresponding maximum sensitivities were 1.03, 0.87, 2.75, 0.014, 0.09, and 1.07, respectively. The study shows that the effect of Poisson's ratio of the soil around the pile is the most sensitive to the pile bearing capacity when it is changed, the effect of density, modulus of elasticity and coefficient of friction are more sensitive, and the effect of soil cohesion and angle of internal friction show insensitivity. This study provides reference value for subsequent studies related to pile bearing capacity.

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.

Download article (PDF)

TY  - CONF
AU  - Zongjun Sun
AU  - Yongpeng Zhu
PY  - 2025
DA  - 2025/06/13
TI  - Sensitivity Analysis of Factors Affecting Pile Bearing Capacity Based on Finite Element Simulation
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 623
EP  - 634
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_63
DO  - 10.2991/978-94-6463-726-7_63
ID  - Sun2025
ER  -