Experimental investigation of vertical bearing capacity and group pile effect for combined long and short pile foundations in Loess.
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| Title: | Experimental investigation of vertical bearing capacity and group pile effect for combined long and short pile foundations in Loess. |
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| Authors: | Ma, Tianzhong1 matz0914@163.com, Tian, Mengli2 tianmengli2022@163.com, Wang, Zhengzhen1 wangzz@lut.edu.cn |
| Source: | Archives of Civil Engineering (Polish Academy of Sciences). 2026, Vol. 72 Issue 1, p421-434. 14p. |
| Subjects: | Piles & pile driving, Loess, Building foundations, Axial loads |
| Abstract: | To simultaneously meet both bearing capacity and settlement requirements in loess areas, the introduction of novel pile foundation types is crucial. A large-scale indoor model experimental was designed and conducted. The experiment tested four variables: pile spacing, pile type, number of piles, and pile length. A comprehensive analysis was conducted to determine the vertical bearing capacity of combined long and short pile foundations, including the influence of the group pile effect on combined long and short pile foundation performance. The experimental results reveal that the lateral frictional resistance of both long and short piles in the combined long and short pile foundations system acted in an alternating manner. Furthermore, the axial force and lateral frictional resistance of the corner piles were slightly greater than those of the edge and center piles. Increasing the pile spacing, the group pile effect coefficient increases from 0.83 to 0.95. This results in a 16.7% enhancement in the bearing capacity of the group pile foundation. Modifying the pile type increases the group pile effect coefficient from 0.825 to 0.94. This leads to a roughly 16% improvement in bearing capacity compared to the ring-shaped pile configuration. Reducing the number of long piles, the group effect coefficient increased from 0.825 to 0.80. The overall ultimate bearing capacity decreases by approximately 20%. Increasing the pile length results in a group pile effect coefficient of 0.87, representing a 0.45 increase compared to the base pile configuration. Consequently, the bearing capacity of the group pile foundation improves by 18.1%. [ABSTRACT FROM AUTHOR] |
| Copyright of Archives of Civil Engineering (Polish Academy of Sciences) is the property of Polish Academy of Sciences and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 192139587 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Experimental investigation of vertical bearing capacity and group pile effect for combined long and short pile foundations in Loess. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ma%2C+Tianzhong%22">Ma, Tianzhong</searchLink><relatesTo>1</relatesTo><i> matz0914@163.com</i><br /><searchLink fieldCode="AR" term="%22Tian%2C+Mengli%22">Tian, Mengli</searchLink><relatesTo>2</relatesTo><i> tianmengli2022@163.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Zhengzhen%22">Wang, Zhengzhen</searchLink><relatesTo>1</relatesTo><i> wangzz@lut.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Archives+of+Civil+Engineering+%28Polish+Academy+of+Sciences%29%22">Archives of Civil Engineering (Polish Academy of Sciences)</searchLink>. 2026, Vol. 72 Issue 1, p421-434. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Piles+%26+pile+driving%22">Piles & pile driving</searchLink><br /><searchLink fieldCode="DE" term="%22Loess%22">Loess</searchLink><br /><searchLink fieldCode="DE" term="%22Building+foundations%22">Building foundations</searchLink><br /><searchLink fieldCode="DE" term="%22Axial+loads%22">Axial loads</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: To simultaneously meet both bearing capacity and settlement requirements in loess areas, the introduction of novel pile foundation types is crucial. A large-scale indoor model experimental was designed and conducted. The experiment tested four variables: pile spacing, pile type, number of piles, and pile length. A comprehensive analysis was conducted to determine the vertical bearing capacity of combined long and short pile foundations, including the influence of the group pile effect on combined long and short pile foundation performance. The experimental results reveal that the lateral frictional resistance of both long and short piles in the combined long and short pile foundations system acted in an alternating manner. Furthermore, the axial force and lateral frictional resistance of the corner piles were slightly greater than those of the edge and center piles. Increasing the pile spacing, the group pile effect coefficient increases from 0.83 to 0.95. This results in a 16.7% enhancement in the bearing capacity of the group pile foundation. Modifying the pile type increases the group pile effect coefficient from 0.825 to 0.94. This leads to a roughly 16% improvement in bearing capacity compared to the ring-shaped pile configuration. Reducing the number of long piles, the group effect coefficient increased from 0.825 to 0.80. The overall ultimate bearing capacity decreases by approximately 20%. Increasing the pile length results in a group pile effect coefficient of 0.87, representing a 0.45 increase compared to the base pile configuration. Consequently, the bearing capacity of the group pile foundation improves by 18.1%. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Archives of Civil Engineering (Polish Academy of Sciences) is the property of Polish Academy of Sciences and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.24425/ace.2026.157483 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 421 Subjects: – SubjectFull: Piles & pile driving Type: general – SubjectFull: Loess Type: general – SubjectFull: Building foundations Type: general – SubjectFull: Axial loads Type: general Titles: – TitleFull: Experimental investigation of vertical bearing capacity and group pile effect for combined long and short pile foundations in Loess. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ma, Tianzhong – PersonEntity: Name: NameFull: Tian, Mengli – PersonEntity: Name: NameFull: Wang, Zhengzhen IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 12302945 Numbering: – Type: volume Value: 72 – Type: issue Value: 1 Titles: – TitleFull: Archives of Civil Engineering (Polish Academy of Sciences) Type: main |
| ResultId | 1 |
