The Influence of the Construction of the Bridge Pile Foundation on the Adjacent Operating Subway Tunnel Considering the Creep Characteristics of the Stratum
The pile foundation construction adjacent to an operational subway tunnel can induce the creep effects of the surrounding soil of the tunnel, resulting in the deformation of the existing tunnel lining and potentially compromising the safe operation of the tunnel. Therefore, the Mindlin solution and...
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MDPI AG
2025-03-01
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| author | Dandan Wu Wentian Cui |
| author_facet | Dandan Wu Wentian Cui |
| author_sort | Dandan Wu |
| collection | DOAJ |
| description | The pile foundation construction adjacent to an operational subway tunnel can induce the creep effects of the surrounding soil of the tunnel, resulting in the deformation of the existing tunnel lining and potentially compromising the safe operation of the tunnel. Therefore, the Mindlin solution and the generalized Kelvin viscoelasticity constitutive model were employed to establish the theoretical calculation model for the deformation of the adjacent subway tunnel caused by the pile construction. Then, the effect of pile construction on the deformation of adjacent tunnels under different pile–tunnel spacing was analyzed via three-dimensional numerical simulation and theoretical calculation methods and compared with the field monitoring data. The results showed that the theoretical and numerical data are in agreement with the field monitoring data. The theoretical model provides closer predictions to the field-measured values than the numerical simulation. As the distance between the pile and the tunnel increases, both the vertical settlement and the horizontal displacement of the subway tunnel lining exhibit a gradual reduction. In the hard plastic clay region of Hefei City (China), pile foundation construction near an operational subway tunnel can be classified into three distinct zones based on proximity to the tunnel: the high-impact zone (<1.0 <i>D</i>), the moderate-impact zone (1.0 <i>D</i>–3.0 <i>D</i>), and the low-impact zone (>3.0 <i>D</i>). The pile foundation in high-, moderate-, and low-impact zones should be monitored for 7 days, 3 days, and 1 day, respectively, to ensure the stable deformation of the lining. |
| format | Article |
| id | doaj-art-9e2db9ef74c9420c98a7528ed0cfe60e |
| institution | DOAJ |
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| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
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| series | Buildings |
| spelling | doaj-art-9e2db9ef74c9420c98a7528ed0cfe60e2025-08-20T03:08:44ZengMDPI AGBuildings2075-53092025-03-01157100110.3390/buildings15071001The Influence of the Construction of the Bridge Pile Foundation on the Adjacent Operating Subway Tunnel Considering the Creep Characteristics of the StratumDandan Wu0Wentian Cui1School of Municipal and Transportation Engineering, Anhui Water Conservancy Technical College, Hefei 231603, ChinaSchool of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaThe pile foundation construction adjacent to an operational subway tunnel can induce the creep effects of the surrounding soil of the tunnel, resulting in the deformation of the existing tunnel lining and potentially compromising the safe operation of the tunnel. Therefore, the Mindlin solution and the generalized Kelvin viscoelasticity constitutive model were employed to establish the theoretical calculation model for the deformation of the adjacent subway tunnel caused by the pile construction. Then, the effect of pile construction on the deformation of adjacent tunnels under different pile–tunnel spacing was analyzed via three-dimensional numerical simulation and theoretical calculation methods and compared with the field monitoring data. The results showed that the theoretical and numerical data are in agreement with the field monitoring data. The theoretical model provides closer predictions to the field-measured values than the numerical simulation. As the distance between the pile and the tunnel increases, both the vertical settlement and the horizontal displacement of the subway tunnel lining exhibit a gradual reduction. In the hard plastic clay region of Hefei City (China), pile foundation construction near an operational subway tunnel can be classified into three distinct zones based on proximity to the tunnel: the high-impact zone (<1.0 <i>D</i>), the moderate-impact zone (1.0 <i>D</i>–3.0 <i>D</i>), and the low-impact zone (>3.0 <i>D</i>). The pile foundation in high-, moderate-, and low-impact zones should be monitored for 7 days, 3 days, and 1 day, respectively, to ensure the stable deformation of the lining.https://www.mdpi.com/2075-5309/15/7/1001pile foundation constructionoperating subway tunneltunnel deformationtheoretical modelviscoelasticity analysis |
| spellingShingle | Dandan Wu Wentian Cui The Influence of the Construction of the Bridge Pile Foundation on the Adjacent Operating Subway Tunnel Considering the Creep Characteristics of the Stratum Buildings pile foundation construction operating subway tunnel tunnel deformation theoretical model viscoelasticity analysis |
| title | The Influence of the Construction of the Bridge Pile Foundation on the Adjacent Operating Subway Tunnel Considering the Creep Characteristics of the Stratum |
| title_full | The Influence of the Construction of the Bridge Pile Foundation on the Adjacent Operating Subway Tunnel Considering the Creep Characteristics of the Stratum |
| title_fullStr | The Influence of the Construction of the Bridge Pile Foundation on the Adjacent Operating Subway Tunnel Considering the Creep Characteristics of the Stratum |
| title_full_unstemmed | The Influence of the Construction of the Bridge Pile Foundation on the Adjacent Operating Subway Tunnel Considering the Creep Characteristics of the Stratum |
| title_short | The Influence of the Construction of the Bridge Pile Foundation on the Adjacent Operating Subway Tunnel Considering the Creep Characteristics of the Stratum |
| title_sort | influence of the construction of the bridge pile foundation on the adjacent operating subway tunnel considering the creep characteristics of the stratum |
| topic | pile foundation construction operating subway tunnel tunnel deformation theoretical model viscoelasticity analysis |
| url | https://www.mdpi.com/2075-5309/15/7/1001 |
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