Mechanical Response Analysis of Existing Metro Stations Caused by Large-sectionRectangular Interchange Passage CloselyUnderpassing
[Objective] The construction disturbance caused by newly built stations with large-section rectangular interchange passage closely under-passing existing urban rail transit stations (hereinafter referred to as ′existing stations′) is significant, and there is a lack of relevant research on this topi...
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Urban Mass Transit Magazine Press
2025-07-01
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| Series: | Chengshi guidao jiaotong yanjiu |
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| Online Access: | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.20245730.html |
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| author | WU Jun ZHANG Jiabing SUN Houqiang DU Yu TENG Lirong |
| author_facet | WU Jun ZHANG Jiabing SUN Houqiang DU Yu TENG Lirong |
| author_sort | WU Jun |
| collection | DOAJ |
| description | [Objective] The construction disturbance caused by newly built stations with large-section rectangular interchange passage closely under-passing existing urban rail transit stations (hereinafter referred to as ′existing stations′) is significant, and there is a lack of relevant research on this topic. It is necessary to investigate the deformation and disturbance situation on the existing station caused by the newly built station closely under-passing. [Method] Based on the theory of conventional random media and its algorithm, an improved algorithm is proposed. Taking Jinfu Interchange Station of Chengdu Rail Transit as an example, relevant engineering calculation parameters are selected, and a three-dimensional numerical simulation model for the interchange station is established. The mechanical response of Chengdu Rail Transit Line 27 newly built Jinfu Station interchange passage closely under-passing existing Line 6 station is analyzed. The precision of improved algorithm and simulation model is verified through measured and simulated value comparison, and a sensitivity analysis of parameters is carried out. [Result & Conclusion] Through comparing measured and simulated values, the feasibility of the improved algorithm and simulation model mentioned above is verified. Constrained by the supporting piles, a bending moment or ′groove′ phenomenon appears on the structural base plate at the existing station. Additionally, with the increase of net spacing between the new interchange passage and the existing station, the most unfavorable part on the structural base plate shifts outward from the tunnel centerline. As the foundation reaction coefficient increases, the interaction between soil and the existing station intensifies, resulting in significant deformation, bending moment, and shear force on the structural base plate of existing station. |
| format | Article |
| id | doaj-art-774d73952d0e4751b33f046a5b60ec8b |
| institution | Kabale University |
| issn | 1007-869X |
| language | zho |
| publishDate | 2025-07-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj-art-774d73952d0e4751b33f046a5b60ec8b2025-08-20T03:28:54ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2025-07-01287303610.16037/j.1007-869x.20245730Mechanical Response Analysis of Existing Metro Stations Caused by Large-sectionRectangular Interchange Passage CloselyUnderpassingWU Jun0ZHANG Jiabing1SUN Houqiang2DU Yu3TENG Lirong4China State Construction Engineering Co., Ltd, 100089, Beijing, ChinaCollege of Civil Engineering and Architecture, Guangxi University, 530004, Nanning, ChinaInfrastructure Construction Investment Co., Ltd., China Construction Third Engineering Bureau Co., Ltd., 430073, Wuhan, ChinaInfrastructure Construction Investment Co., Ltd., China Construction Third Engineering Bureau Co., Ltd., 430073, Wuhan, ChinaInfrastructure Construction Investment Co., Ltd., China Construction Third Engineering Bureau Co., Ltd., 430073, Wuhan, China[Objective] The construction disturbance caused by newly built stations with large-section rectangular interchange passage closely under-passing existing urban rail transit stations (hereinafter referred to as ′existing stations′) is significant, and there is a lack of relevant research on this topic. It is necessary to investigate the deformation and disturbance situation on the existing station caused by the newly built station closely under-passing. [Method] Based on the theory of conventional random media and its algorithm, an improved algorithm is proposed. Taking Jinfu Interchange Station of Chengdu Rail Transit as an example, relevant engineering calculation parameters are selected, and a three-dimensional numerical simulation model for the interchange station is established. The mechanical response of Chengdu Rail Transit Line 27 newly built Jinfu Station interchange passage closely under-passing existing Line 6 station is analyzed. The precision of improved algorithm and simulation model is verified through measured and simulated value comparison, and a sensitivity analysis of parameters is carried out. [Result & Conclusion] Through comparing measured and simulated values, the feasibility of the improved algorithm and simulation model mentioned above is verified. Constrained by the supporting piles, a bending moment or ′groove′ phenomenon appears on the structural base plate at the existing station. Additionally, with the increase of net spacing between the new interchange passage and the existing station, the most unfavorable part on the structural base plate shifts outward from the tunnel centerline. As the foundation reaction coefficient increases, the interaction between soil and the existing station intensifies, resulting in significant deformation, bending moment, and shear force on the structural base plate of existing station.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.20245730.htmlurban rail transitstation adjacent constructionlarge-section rectangular passagemechanical response |
| spellingShingle | WU Jun ZHANG Jiabing SUN Houqiang DU Yu TENG Lirong Mechanical Response Analysis of Existing Metro Stations Caused by Large-sectionRectangular Interchange Passage CloselyUnderpassing Chengshi guidao jiaotong yanjiu urban rail transit station adjacent construction large-section rectangular passage mechanical response |
| title | Mechanical Response Analysis of Existing Metro Stations Caused by Large-sectionRectangular Interchange Passage CloselyUnderpassing |
| title_full | Mechanical Response Analysis of Existing Metro Stations Caused by Large-sectionRectangular Interchange Passage CloselyUnderpassing |
| title_fullStr | Mechanical Response Analysis of Existing Metro Stations Caused by Large-sectionRectangular Interchange Passage CloselyUnderpassing |
| title_full_unstemmed | Mechanical Response Analysis of Existing Metro Stations Caused by Large-sectionRectangular Interchange Passage CloselyUnderpassing |
| title_short | Mechanical Response Analysis of Existing Metro Stations Caused by Large-sectionRectangular Interchange Passage CloselyUnderpassing |
| title_sort | mechanical response analysis of existing metro stations caused by large sectionrectangular interchange passage closelyunderpassing |
| topic | urban rail transit station adjacent construction large-section rectangular passage mechanical response |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.20245730.html |
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