A Study of Seasonal River Water Level Fluctuations and Their Impact on the Upward Floating of Underlying Shield Tunnels.
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| Title: | A Study of Seasonal River Water Level Fluctuations and Their Impact on the Upward Floating of Underlying Shield Tunnels. |
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| Authors: | Lin, Zichen1 (AUTHOR) lzc18956368893@163.com, Wu, Shengzhi2 (AUTHOR) wushengzhi19@sdjzu.edu.cn, Guo, Jilong3 (AUTHOR) 2419543769@qq.com, Qi, Feiming4 (AUTHOR) cr23rdbureauqfm@163.com, Li, Wenxiang4 (AUTHOR) cr23rdbureaulwx@163.com |
| Source: | Journal of Performance of Constructed Facilities. Jun2025, Vol. 39 Issue 3, p1-16. 16p. |
| Subjects: | Tunnels, Grouting, Seasons, Streamflow, Groundwater flow, Computer simulation, Civil engineering |
| Geographic Terms: | Jinan (Shandong Sheng, China) |
| Abstract: | Rivers exhibit significant water level fluctuations between dry and wet seasons, affecting nearby structures. These fluctuations cause the overlying shield tunnels to float upward, leading to defects such as misalignment and leakage in pipe segments. This study, based on the shield tunneling project for the Jinan Metro R3 line crossing the Daxin River, compared the deformation of pipe segments during dry and wet seasons using numerical simulations. During the wet season, floating and displacement of pipe segments increased, primarily at the junction between the riverbank and riverbed. This study discusses the influence of groundwater level, thickness of riverbed soil cover, geological parameters, and grouting layer quality on the uplift and displacement of the segments. Suggestions are made for advanced grouting reinforcement of the strata, improving the quality of synchronous grouting, and controlling the uplift using antipull piles and pressure plates, and their design parameters are discussed. The effectiveness of these control measures was verified using on-site research, providing a reference for seasonal river construction of shield tunnels in shallow soil. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Performance of Constructed Facilities is the property of American Society of Civil Engineers 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 184492145 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A Study of Seasonal River Water Level Fluctuations and Their Impact on the Upward Floating of Underlying Shield Tunnels. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Lin%2C+Zichen%22">Lin, Zichen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lzc18956368893@163.com</i><br /><searchLink fieldCode="AR" term="%22Wu%2C+Shengzhi%22">Wu, Shengzhi</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> wushengzhi19@sdjzu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Guo%2C+Jilong%22">Guo, Jilong</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> 2419543769@qq.com</i><br /><searchLink fieldCode="AR" term="%22Qi%2C+Feiming%22">Qi, Feiming</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> cr23rdbureauqfm@163.com</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Wenxiang%22">Li, Wenxiang</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> cr23rdbureaulwx@163.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Performance+of+Constructed+Facilities%22">Journal of Performance of Constructed Facilities</searchLink>. Jun2025, Vol. 39 Issue 3, p1-16. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Tunnels%22">Tunnels</searchLink><br /><searchLink fieldCode="DE" term="%22Grouting%22">Grouting</searchLink><br /><searchLink fieldCode="DE" term="%22Seasons%22">Seasons</searchLink><br /><searchLink fieldCode="DE" term="%22Streamflow%22">Streamflow</searchLink><br /><searchLink fieldCode="DE" term="%22Groundwater+flow%22">Groundwater flow</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Civil+engineering%22">Civil engineering</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Jinan+%28Shandong+Sheng%2C+China%29%22">Jinan (Shandong Sheng, China)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Rivers exhibit significant water level fluctuations between dry and wet seasons, affecting nearby structures. These fluctuations cause the overlying shield tunnels to float upward, leading to defects such as misalignment and leakage in pipe segments. This study, based on the shield tunneling project for the Jinan Metro R3 line crossing the Daxin River, compared the deformation of pipe segments during dry and wet seasons using numerical simulations. During the wet season, floating and displacement of pipe segments increased, primarily at the junction between the riverbank and riverbed. This study discusses the influence of groundwater level, thickness of riverbed soil cover, geological parameters, and grouting layer quality on the uplift and displacement of the segments. Suggestions are made for advanced grouting reinforcement of the strata, improving the quality of synchronous grouting, and controlling the uplift using antipull piles and pressure plates, and their design parameters are discussed. The effectiveness of these control measures was verified using on-site research, providing a reference for seasonal river construction of shield tunnels in shallow soil. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Performance of Constructed Facilities is the property of American Society of Civil Engineers 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: 10.1061/JPCFEV.CFENG-4988 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 1 Subjects: – SubjectFull: Tunnels Type: general – SubjectFull: Grouting Type: general – SubjectFull: Seasons Type: general – SubjectFull: Streamflow Type: general – SubjectFull: Groundwater flow Type: general – SubjectFull: Computer simulation Type: general – SubjectFull: Civil engineering Type: general – SubjectFull: Jinan (Shandong Sheng, China) Type: general Titles: – TitleFull: A Study of Seasonal River Water Level Fluctuations and Their Impact on the Upward Floating of Underlying Shield Tunnels. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lin, Zichen – PersonEntity: Name: NameFull: Wu, Shengzhi – PersonEntity: Name: NameFull: Guo, Jilong – PersonEntity: Name: NameFull: Qi, Feiming – PersonEntity: Name: NameFull: Li, Wenxiang IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 08873828 Numbering: – Type: volume Value: 39 – Type: issue Value: 3 Titles: – TitleFull: Journal of Performance of Constructed Facilities Type: main |
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