Influence of cavity-forming processes on the uplift resistance of bulb piles
The uplift resistances and failure modes of bulb piles with variable sections are quite different in the cutting or extruding construction modes. Through numerical simulation, the extrusion effects on the soil around the pile are estimated in this study. How the load transfers along a bulb pile is a...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2025-06-01
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| Series: | Journal of Intelligent Construction |
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| Online Access: | https://www.sciopen.com/article/10.26599/JIC.2025.9180085 |
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| author | Chongde Cai Lihong Chen Zhipeng Zhang Xu Li Liang Gao |
| author_facet | Chongde Cai Lihong Chen Zhipeng Zhang Xu Li Liang Gao |
| author_sort | Chongde Cai |
| collection | DOAJ |
| description | The uplift resistances and failure modes of bulb piles with variable sections are quite different in the cutting or extruding construction modes. Through numerical simulation, the extrusion effects on the soil around the pile are estimated in this study. How the load transfers along a bulb pile is analyzed. The physical state variables of the soil around the pile are estimated, including the von Mises stress, horizontal stress, vertical stress, void ratio, displacement, and resistance. Owing to the extrusion effects, the influence range of the physical state variables increases. The greater the initial compactness of the soil around the pile is, the greater the influence range of the compaction on the physical state variables of the soil around the pile. When the compactness of the soil around the pile is high, the ultimate bearing capacity of the pile can be increased by 30% because of the extrusion effect. When the compactness is relatively small, the ultimate bearing capacity can also increase by more than 20%. The improvement in the pile bearing capacity due to the extrusion effect is reflected mainly in the enhanced plate resistance, whereas the improvement in the side resistance is not significant. |
| format | Article |
| id | doaj-art-f8de8d3aaa9e4d16b113efd736aa0bfd |
| institution | DOAJ |
| issn | 2958-3861 2958-2652 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Intelligent Construction |
| spelling | doaj-art-f8de8d3aaa9e4d16b113efd736aa0bfd2025-08-20T03:19:08ZengTsinghua University PressJournal of Intelligent Construction2958-38612958-26522025-06-0132918008510.26599/JIC.2025.9180085Influence of cavity-forming processes on the uplift resistance of bulb pilesChongde Cai0Lihong Chen1Zhipeng Zhang2Xu Li3Liang Gao4Key Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaState Key Laboratory of Internet of Things for Smart City, University of Macau, Macau 999078, ChinaThe uplift resistances and failure modes of bulb piles with variable sections are quite different in the cutting or extruding construction modes. Through numerical simulation, the extrusion effects on the soil around the pile are estimated in this study. How the load transfers along a bulb pile is analyzed. The physical state variables of the soil around the pile are estimated, including the von Mises stress, horizontal stress, vertical stress, void ratio, displacement, and resistance. Owing to the extrusion effects, the influence range of the physical state variables increases. The greater the initial compactness of the soil around the pile is, the greater the influence range of the compaction on the physical state variables of the soil around the pile. When the compactness of the soil around the pile is high, the ultimate bearing capacity of the pile can be increased by 30% because of the extrusion effect. When the compactness is relatively small, the ultimate bearing capacity can also increase by more than 20%. The improvement in the pile bearing capacity due to the extrusion effect is reflected mainly in the enhanced plate resistance, whereas the improvement in the side resistance is not significant.https://www.sciopen.com/article/10.26599/JIC.2025.9180085hypoplastic constitutive modelnumerical simulationbulb pilebearing capacity |
| spellingShingle | Chongde Cai Lihong Chen Zhipeng Zhang Xu Li Liang Gao Influence of cavity-forming processes on the uplift resistance of bulb piles Journal of Intelligent Construction hypoplastic constitutive model numerical simulation bulb pile bearing capacity |
| title | Influence of cavity-forming processes on the uplift resistance of bulb piles |
| title_full | Influence of cavity-forming processes on the uplift resistance of bulb piles |
| title_fullStr | Influence of cavity-forming processes on the uplift resistance of bulb piles |
| title_full_unstemmed | Influence of cavity-forming processes on the uplift resistance of bulb piles |
| title_short | Influence of cavity-forming processes on the uplift resistance of bulb piles |
| title_sort | influence of cavity forming processes on the uplift resistance of bulb piles |
| topic | hypoplastic constitutive model numerical simulation bulb pile bearing capacity |
| url | https://www.sciopen.com/article/10.26599/JIC.2025.9180085 |
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