Model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressure
Abstract The surrounding soil pressure will significantly impact the existing tunnel lining. To study the deformation characteristics of the staggered segmental tunnel linings structure under this pressure, a model test device considering surrounding soil pressure effects is designed. This device si...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-04-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-97013-3 |
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| author | Mingyu Li Jinghui Yang Jian Chen Gongbiao Yang Longji Wu Zhiyong Liu Junwei Jin |
| author_facet | Mingyu Li Jinghui Yang Jian Chen Gongbiao Yang Longji Wu Zhiyong Liu Junwei Jin |
| author_sort | Mingyu Li |
| collection | DOAJ |
| description | Abstract The surrounding soil pressure will significantly impact the existing tunnel lining. To study the deformation characteristics of the staggered segmental tunnel linings structure under this pressure, a model test device considering surrounding soil pressure effects is designed. This device simulates the impact of surrounding soil pressure on staggered lining using special prestressed springs. A bolt connected staggered lining model is also developed. Additionally, concentrated load F simulates loading conditions in some projects, applied to the lining structure. The reliability of test results is validated through numerical simulation. This study investigates segment displacement variations, including tunnel crown vertical displacement V d, ring and longitudinal joint dislocations CJ and LJ, and convergence deformation C. And the relationship between longitudinal joint dislocation and ring lining deformation. Based on these findings, relationships among vertical displacement, ring joint dislocations, vertical convergence, and longitudinal joint dislocation in the staggered segmental tunnel linings structure are established, offering valuable insights for predicting and analyzing deformation in similar projects. |
| format | Article |
| id | doaj-art-bc723e4fd7404f4fac50652fc6acac1f |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-bc723e4fd7404f4fac50652fc6acac1f2025-08-20T02:17:47ZengNature PortfolioScientific Reports2045-23222025-04-0115111810.1038/s41598-025-97013-3Model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressureMingyu Li0Jinghui Yang1Jian Chen2Gongbiao Yang3Longji Wu4Zhiyong Liu5Junwei Jin6School of Civil Engineering, Zhengzhou UniversitySchool of Civil Engineering, Zhengzhou UniversityChina Railway Construction Underwater Tunnel Engineering Laboratory, China Railway 14 th Bureau Group CoChina Railway Construction Underwater Tunnel Engineering Laboratory, China Railway 14 th Bureau Group CoSchool of Civil Engineering, Wuhan UniversitySchool of Transportation Engineering, Tongji UniversitySchool of Civil Engineering, Zhengzhou UniversityAbstract The surrounding soil pressure will significantly impact the existing tunnel lining. To study the deformation characteristics of the staggered segmental tunnel linings structure under this pressure, a model test device considering surrounding soil pressure effects is designed. This device simulates the impact of surrounding soil pressure on staggered lining using special prestressed springs. A bolt connected staggered lining model is also developed. Additionally, concentrated load F simulates loading conditions in some projects, applied to the lining structure. The reliability of test results is validated through numerical simulation. This study investigates segment displacement variations, including tunnel crown vertical displacement V d, ring and longitudinal joint dislocations CJ and LJ, and convergence deformation C. And the relationship between longitudinal joint dislocation and ring lining deformation. Based on these findings, relationships among vertical displacement, ring joint dislocations, vertical convergence, and longitudinal joint dislocation in the staggered segmental tunnel linings structure are established, offering valuable insights for predicting and analyzing deformation in similar projects.https://doi.org/10.1038/s41598-025-97013-3Shield tunnelStaggered assembledLongitudinal deformationTransverse deformationModel test |
| spellingShingle | Mingyu Li Jinghui Yang Jian Chen Gongbiao Yang Longji Wu Zhiyong Liu Junwei Jin Model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressure Scientific Reports Shield tunnel Staggered assembled Longitudinal deformation Transverse deformation Model test |
| title | Model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressure |
| title_full | Model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressure |
| title_fullStr | Model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressure |
| title_full_unstemmed | Model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressure |
| title_short | Model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressure |
| title_sort | model experimental investigation on staggered segmental tunnel linings considering the surrounding soil pressure |
| topic | Shield tunnel Staggered assembled Longitudinal deformation Transverse deformation Model test |
| url | https://doi.org/10.1038/s41598-025-97013-3 |
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