Calculation of Pile Bearing Capacity Under the Influence of Soil Cavities Based on the GM (1,3) Model

DOI

10.2991/978-94-6463-780-9_23How to use a DOI?

Keywords

geotechnical engineering; pile; cavity; bearing capacity; numerical simulation; grey theory

Abstract

This study establishes a pile-soil cavity-geotechnical model. The reliability of simulation parameters is verified through experimental piles, and load-settlement curves of piles under varying height-to-length ratios and burial depths of soil cavities are provided. The bearing capacity of piles under different conditions is analyzed. Utilizing the GM (1,3) theoretical model, a calculation formula for pile bearing capacity influenced by soil cavities is derived. The results indicate that an increase in the height-to-length ratio leads to a reduction in pile bearing capacity, with an accelerating rate of reduction. When it increases to 0.32, the pile bearing capacity decreases by 17.02%. Similarly, an increase in the burial depth of soil cavities reduces the pile bearing capacity, with a reduction of 11.80%. The impact is less significant than that of the height-to-length ratio. A formula is established to calculate the pile bearing capacity under the influence of these two factors based on the GM (1,3) theory. A comparison between theoretical calculations and simulation results shows a posterior error ratio of 0.067 and a small error probability of 1, demonstrating high calculation accuracy. The formula can be used to calculate the bearing capacity of piles under the influence of soil cavity factors. The research findings provide a theoretical reference for calculating the bearing capacity of similar engineering piles.

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  - Xiaona Sun
AU  - Dongyang Lv
AU  - Lijun Bi
PY  - 2025
DA  - 2025/07/03
TI  - Calculation of Pile Bearing Capacity Under the Influence of Soil Cavities Based on the GM (1,3) Model
BT  - Proceedings of the 2025 International Conference on Engineering Management and Safety Engineering (EMSE 2025)
PB  - Atlantis Press
SP  - 233
EP  - 243
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-780-9_23
DO  - 10.2991/978-94-6463-780-9_23
ID  - Sun2025
ER  -