Research on the Distribution Law of Lateral Earth Pressure on Adjacent Structures Under the Influence of Retaining Structure Deformation.
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| Title: | Research on the Distribution Law of Lateral Earth Pressure on Adjacent Structures Under the Influence of Retaining Structure Deformation. |
|---|---|
| Authors: | Luo, Hua1 12015024@hnist.edu.cn, Liu, Ying1 822511140652@vip.hnist.edu.cn, Liang, Yongyan1 822111140454@vip.hnist.edu.cn, Wang, Weiwei1 12013032@hnist.edu.cn, Li, Bin1 12007030@hnist.edu.cn, She, Qincong1 22017036@hnist.edu.cn, Zeng, Yongqing1 1013433575@qq.com |
| Source: | Engineering Letters. May2026, Vol. 34 Issue 5, p2072-2085. 14p. |
| Subjects: | Earth pressure, Soil-structure interaction, Rotational motion, Retaining walls, Finite element method, Building foundations, Structural analysis (Engineering), Soil mechanics |
| Abstract: | In urban excavation and renovation projects, deep foundations are frequently constructed adjacent to existing structures. Although isolation piles are commonly employed to reduce excavation-induced effects, the deformation of these piles or the adjacent structures themselves--resulting from soil unloading on one side and unbalanced loads such as structural self-weight and construction surcharges on the other--involves a complex soil-structure interaction that remains insufficiently understood. This study combined physical model tests and numerical simulations to investigate the failure mechanism of confined finite soil and the associated lateral earth pressure distribution on a neighboring structure induced by rotational deformation of the retaining wall. Ten sets of model tests were conducted under sandy soil conditions to investigate the influence of deformation of a foundation pit retaining structure on the lateral earth pressure distribution of an adjacent structure. The influencing factors and variation patterns of earth pressure and structural displacement on the adjacent structure side during rotational deformation of the retaining structure were analyzed. The research indicates that the plastic zone of the finite soil develops from the upper left corner to the lower right corner, forming multiple parallel inclined slip surfaces within the soil mass. When the width-to-height ratio (B/H) ranges from 0.1 to 0.5, the boundary of the finite soil plastic zone intersects with the adjacent structure. As the rotational deformation of the movable wall around its base increases, the resultant earth pressure above approximately 1/4 of the height of the adjacent structure gradually decreases, while the resultant earth pressure below this height gradually increases. By the end of the test, the resultant earth pressure below this height was significantly greater than that above. A finite element model was established to simulate the interaction between the finite soil and the adjacent structure under rotational deformation of the retaining structure. The failure mode of the soil, distribution law of the earth pressure, and structural deformation obtained from the numerical simulation showed good agreement with the experimental results, verifying the validity of the finite element model. Based on this, parameter analysis was conducted using the finite element method to explore the influence of rotation ratio, surcharge, and soil density on the soil failure mode and earth pressure distribution. The results show that an increase in the rotation ratio of the retaining structure makes the boundary of the soil plastic zone and the slip surface more pronounced; an increase in the surcharge on the structure side leads to an increase in the resultant earth pressure on the adjacent structure side, and the point of application of the resultant force shifts upward; an increase in soil density does not affect the morphological characteristics of the failure surface but increases the maximum value of earth pressure. This study clarifies the evolution of lateral earth pressure and failure mechanism of finite soil under retaining wall deformation, providing a theoretical basis for the design and deformation control of isolation piles in similar adjacent construction scenarios. [ABSTRACT FROM AUTHOR] |
| Copyright of Engineering Letters is the property of International Association of Engineers (IAENG) 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.) | |
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| Items | – Name: Title Label: Title Group: Ti Data: Research on the Distribution Law of Lateral Earth Pressure on Adjacent Structures Under the Influence of Retaining Structure Deformation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Luo%2C+Hua%22">Luo, Hua</searchLink><relatesTo>1</relatesTo><i> 12015024@hnist.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Ying%22">Liu, Ying</searchLink><relatesTo>1</relatesTo><i> 822511140652@vip.hnist.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liang%2C+Yongyan%22">Liang, Yongyan</searchLink><relatesTo>1</relatesTo><i> 822111140454@vip.hnist.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Weiwei%22">Wang, Weiwei</searchLink><relatesTo>1</relatesTo><i> 12013032@hnist.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Bin%22">Li, Bin</searchLink><relatesTo>1</relatesTo><i> 12007030@hnist.edu.cn</i><br /><searchLink fieldCode="AR" term="%22She%2C+Qincong%22">She, Qincong</searchLink><relatesTo>1</relatesTo><i> 22017036@hnist.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zeng%2C+Yongqing%22">Zeng, Yongqing</searchLink><relatesTo>1</relatesTo><i> 1013433575@qq.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Engineering+Letters%22">Engineering Letters</searchLink>. May2026, Vol. 34 Issue 5, p2072-2085. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Earth+pressure%22">Earth pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Soil-structure+interaction%22">Soil-structure interaction</searchLink><br /><searchLink fieldCode="DE" term="%22Rotational+motion%22">Rotational motion</searchLink><br /><searchLink fieldCode="DE" term="%22Retaining+walls%22">Retaining walls</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Building+foundations%22">Building foundations</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+analysis+%28Engineering%29%22">Structural analysis (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+mechanics%22">Soil mechanics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In urban excavation and renovation projects, deep foundations are frequently constructed adjacent to existing structures. Although isolation piles are commonly employed to reduce excavation-induced effects, the deformation of these piles or the adjacent structures themselves--resulting from soil unloading on one side and unbalanced loads such as structural self-weight and construction surcharges on the other--involves a complex soil-structure interaction that remains insufficiently understood. This study combined physical model tests and numerical simulations to investigate the failure mechanism of confined finite soil and the associated lateral earth pressure distribution on a neighboring structure induced by rotational deformation of the retaining wall. Ten sets of model tests were conducted under sandy soil conditions to investigate the influence of deformation of a foundation pit retaining structure on the lateral earth pressure distribution of an adjacent structure. The influencing factors and variation patterns of earth pressure and structural displacement on the adjacent structure side during rotational deformation of the retaining structure were analyzed. The research indicates that the plastic zone of the finite soil develops from the upper left corner to the lower right corner, forming multiple parallel inclined slip surfaces within the soil mass. When the width-to-height ratio (B/H) ranges from 0.1 to 0.5, the boundary of the finite soil plastic zone intersects with the adjacent structure. As the rotational deformation of the movable wall around its base increases, the resultant earth pressure above approximately 1/4 of the height of the adjacent structure gradually decreases, while the resultant earth pressure below this height gradually increases. By the end of the test, the resultant earth pressure below this height was significantly greater than that above. A finite element model was established to simulate the interaction between the finite soil and the adjacent structure under rotational deformation of the retaining structure. The failure mode of the soil, distribution law of the earth pressure, and structural deformation obtained from the numerical simulation showed good agreement with the experimental results, verifying the validity of the finite element model. Based on this, parameter analysis was conducted using the finite element method to explore the influence of rotation ratio, surcharge, and soil density on the soil failure mode and earth pressure distribution. The results show that an increase in the rotation ratio of the retaining structure makes the boundary of the soil plastic zone and the slip surface more pronounced; an increase in the surcharge on the structure side leads to an increase in the resultant earth pressure on the adjacent structure side, and the point of application of the resultant force shifts upward; an increase in soil density does not affect the morphological characteristics of the failure surface but increases the maximum value of earth pressure. This study clarifies the evolution of lateral earth pressure and failure mechanism of finite soil under retaining wall deformation, providing a theoretical basis for the design and deformation control of isolation piles in similar adjacent construction scenarios. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Engineering Letters is the property of International Association of Engineers (IAENG) 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: Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 2072 Subjects: – SubjectFull: Earth pressure Type: general – SubjectFull: Soil-structure interaction Type: general – SubjectFull: Rotational motion Type: general – SubjectFull: Retaining walls Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Building foundations Type: general – SubjectFull: Structural analysis (Engineering) Type: general – SubjectFull: Soil mechanics Type: general Titles: – TitleFull: Research on the Distribution Law of Lateral Earth Pressure on Adjacent Structures Under the Influence of Retaining Structure Deformation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Luo, Hua – PersonEntity: Name: NameFull: Liu, Ying – PersonEntity: Name: NameFull: Liang, Yongyan – PersonEntity: Name: NameFull: Wang, Weiwei – PersonEntity: Name: NameFull: Li, Bin – PersonEntity: Name: NameFull: She, Qincong – PersonEntity: Name: NameFull: Zeng, Yongqing IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 1816093X Numbering: – Type: volume Value: 34 – Type: issue Value: 5 Titles: – TitleFull: Engineering Letters Type: main |
| ResultId | 1 |
