An analytical solution for load transfer mechanism of Plum blossom pile foundations
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| Název: | An analytical solution for load transfer mechanism of Plum blossom pile foundations |
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| Autoři: | Long Li, Quan Jiang, Yousheng Deng, Zebin Song |
| Zdroj: | Scientific Reports, Vol 15, Iss 1, Pp 1-17 (2025) |
| Informace o vydavateli: | Nature Portfolio, 2025. |
| Rok vydání: | 2025 |
| Sbírka: | LCC:Medicine LCC:Science |
| Témata: | Plum blossom pile, Equilibrium analysis, Geometrical effects, Skin friction, Load transfer mechanism, Medicine, Science |
| Popis: | Abstract Plum blossom pile, a recently developed non-cylindrical pile, exhibits a load transfer mechanism distinct from conventional circular piles due to its unique cross-section. This study presents an analytical approach to characterize its load transfer behavior based on cross-sectional geometry and vertical shearing mechanisms. Based on the equilibrium analytical method, expressions for axial force/dragload and skin friction are derived. The effects of pile-soil shear action, cross-sectional shape, and effective vertical stress were investigated. The results indicate that the convex zone of the pile increases the soil squeezing stress at the pile-soil interface, and the sharp corner zone creates a semi-soil-plug space made up of circular segments, which increases the vertical effective stress of surrounding soil and then increases the skin friction, which means the cross-section of plum blossom pile has a significant enhancement effect on the shaft resistance. The proposed analytical method provides an effective approach for describing the bearing behavior of the plum blossom pile. |
| Druh dokumentu: | article |
| Popis souboru: | electronic resource |
| Jazyk: | English |
| ISSN: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-025-19000-y |
| Přístupová URL adresa: | https://doaj.org/article/ccf9083c04474cf9b4efa742a863bee7 |
| Přístupové číslo: | edsdoj.f9083c04474cf9b4efa742a863bee7 |
| Databáze: | Directory of Open Access Journals |
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Nájsť tento článok vo Web of Science | Abstrakt: | Abstract Plum blossom pile, a recently developed non-cylindrical pile, exhibits a load transfer mechanism distinct from conventional circular piles due to its unique cross-section. This study presents an analytical approach to characterize its load transfer behavior based on cross-sectional geometry and vertical shearing mechanisms. Based on the equilibrium analytical method, expressions for axial force/dragload and skin friction are derived. The effects of pile-soil shear action, cross-sectional shape, and effective vertical stress were investigated. The results indicate that the convex zone of the pile increases the soil squeezing stress at the pile-soil interface, and the sharp corner zone creates a semi-soil-plug space made up of circular segments, which increases the vertical effective stress of surrounding soil and then increases the skin friction, which means the cross-section of plum blossom pile has a significant enhancement effect on the shaft resistance. The proposed analytical method provides an effective approach for describing the bearing behavior of the plum blossom pile. |
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| ISSN: | 20452322 |
| DOI: | 10.1038/s41598-025-19000-y |