Measurement analysis of strata deformation caused by construction of quasi-rectangular shield
Abstract This paper is based on a large cross-section quasi-rectangular shield tunnel project on Zhengzhou Metro Line 8, where field excavation tests were conducted to study the ground deformation patterns induced by quasi-rectangular shield tunneling through in-situ monitoring. The research results...
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Nature Portfolio
2025-08-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-14548-1 |
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| author | Shi-ju Ma Kai-rong Hong Yong-gang Ding Ming-ming Cao Tian-jing Guo Xin-zhuang Lou |
| author_facet | Shi-ju Ma Kai-rong Hong Yong-gang Ding Ming-ming Cao Tian-jing Guo Xin-zhuang Lou |
| author_sort | Shi-ju Ma |
| collection | DOAJ |
| description | Abstract This paper is based on a large cross-section quasi-rectangular shield tunnel project on Zhengzhou Metro Line 8, where field excavation tests were conducted to study the ground deformation patterns induced by quasi-rectangular shield tunneling through in-situ monitoring. The research results demonstrate that surface settlement can be divided into three distinct phases according to the spatial relationship between the shield cutterhead and monitoring sections: a slow uplift period, a rapid settlement period, and a gentle settlement period. Similarly, the stratified ground settlement is also influenced by the spatial position relationship between the shield and monitoring points, with the primary stratified settlement occurring after the shield machine moves away from the shield tail. The transverse settlement trough distribution of the ground surface tends to be symmetrical and approximately follows the Peck curve distribution. |
| format | Article |
| id | doaj-art-9f0ac8f2727f45dbb1cb7c62abada8f2 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-9f0ac8f2727f45dbb1cb7c62abada8f22025-08-20T03:42:27ZengNature PortfolioScientific Reports2045-23222025-08-0115111110.1038/s41598-025-14548-1Measurement analysis of strata deformation caused by construction of quasi-rectangular shieldShi-ju Ma0Kai-rong Hong1Yong-gang Ding2Ming-ming Cao3Tian-jing Guo4Xin-zhuang Lou5School of civil engineering, Zhengzhou University of TechnologyState Key Laboratory of Shield Machine and Boring TechnologySchool of civil engineering, Henan University of TechnologySchool of Civil Engineering, Zhengzhou UniversitySchool of civil engineering, Zhengzhou University of TechnologySchool of civil engineering, Zhengzhou University of TechnologyAbstract This paper is based on a large cross-section quasi-rectangular shield tunnel project on Zhengzhou Metro Line 8, where field excavation tests were conducted to study the ground deformation patterns induced by quasi-rectangular shield tunneling through in-situ monitoring. The research results demonstrate that surface settlement can be divided into three distinct phases according to the spatial relationship between the shield cutterhead and monitoring sections: a slow uplift period, a rapid settlement period, and a gentle settlement period. Similarly, the stratified ground settlement is also influenced by the spatial position relationship between the shield and monitoring points, with the primary stratified settlement occurring after the shield machine moves away from the shield tail. The transverse settlement trough distribution of the ground surface tends to be symmetrical and approximately follows the Peck curve distribution.https://doi.org/10.1038/s41598-025-14548-1Quasi-rectangular shieldStratigraphic deformationField monitoringWater-rich sand layer |
| spellingShingle | Shi-ju Ma Kai-rong Hong Yong-gang Ding Ming-ming Cao Tian-jing Guo Xin-zhuang Lou Measurement analysis of strata deformation caused by construction of quasi-rectangular shield Scientific Reports Quasi-rectangular shield Stratigraphic deformation Field monitoring Water-rich sand layer |
| title | Measurement analysis of strata deformation caused by construction of quasi-rectangular shield |
| title_full | Measurement analysis of strata deformation caused by construction of quasi-rectangular shield |
| title_fullStr | Measurement analysis of strata deformation caused by construction of quasi-rectangular shield |
| title_full_unstemmed | Measurement analysis of strata deformation caused by construction of quasi-rectangular shield |
| title_short | Measurement analysis of strata deformation caused by construction of quasi-rectangular shield |
| title_sort | measurement analysis of strata deformation caused by construction of quasi rectangular shield |
| topic | Quasi-rectangular shield Stratigraphic deformation Field monitoring Water-rich sand layer |
| url | https://doi.org/10.1038/s41598-025-14548-1 |
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