Adjacent Construction Impact of Shield Tunnel Undercrossing High-Speed Railway Tunnels Based on Surrounding Rock Creep Effect
[Objective] When the surrounding rock exhibits creep characteristics, the temporal factors in the adjacent construction process of shield tunnel undercrossing high-speed railway tunnels cannot be ignored. The speed of the adjacent construction may affect the time-dependent deformation behavior of th...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Urban Mass Transit Magazine Press
2025-05-01
|
| Series: | Chengshi guidao jiaotong yanjiu |
| Subjects: | |
| Online Access: | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.05.030.html |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850040257277329408 |
|---|---|
| author | WANG Youqi MA Guosong QIU Wenge HUANG Haiyun ZHANG Du AI Xufeng |
| author_facet | WANG Youqi MA Guosong QIU Wenge HUANG Haiyun ZHANG Du AI Xufeng |
| author_sort | WANG Youqi |
| collection | DOAJ |
| description | [Objective] When the surrounding rock exhibits creep characteristics, the temporal factors in the adjacent construction process of shield tunnel undercrossing high-speed railway tunnels cannot be ignored. The speed of the adjacent construction may affect the time-dependent deformation behavior of the surrounding rock, thereby influencing the track settlement in the high-speed railway tunnels. Therefore, it is necessary to study the impact of adjacent construction of shield tunnel undercrossing the high-speed railway tunnels under the creep effect of the surrounding rock. [Method] In the case study of Changsha Metro Line 3 shield tunnel undercrossing the Liuyanghe Tunnel, based on the Cvisc creep model, the FLAC 3D finite difference software is used for numerical simulation. The impacts of the adjacent construction on surrounding rock under the classical elastoplasticity and the creep effect are compared and analyzed, together with the time-related factor influence like the driving speed of shield tunneling on the adjacent construction. [Result & Conclusion] Increased water content of argillaceous siltstone will lead to an increase in the final settlement deformation of high-speed railway tracks. So, the water content of the surrounding rock must be prioritized in creep effect analysis. Considering the creep effect of the surrounding rock and the time lag characteristics exhibited in the high-speed railway track settlement deformation during excavation, the creep effect of the surrounding rock may contribute positively to the deformation control in the above adjacent construction scenario. With the acceleration of the shield tunneling, the time lag becomes more obvious in the settlement deformation of the high-speed railway track. During adjacent construction, the creep effect of the surrounding rock can be fully utilized through "rapid excavation and prompt support" to achieve the goal of "trading time for space," thereby securing additional safety margins for the track post-construction settlement control. |
| format | Article |
| id | doaj-art-8957d9aa8ae34b928ffb82df87ccc45f |
| institution | DOAJ |
| issn | 1007-869X |
| language | zho |
| publishDate | 2025-05-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj-art-8957d9aa8ae34b928ffb82df87ccc45f2025-08-20T02:56:08ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2025-05-0128517518010.16037/j.1007-869x.2025.05.030Adjacent Construction Impact of Shield Tunnel Undercrossing High-Speed Railway Tunnels Based on Surrounding Rock Creep EffectWANG Youqi0MA Guosong1QIU Wenge2HUANG Haiyun3ZHANG Du4AI Xufeng5The 5th Engineering Co., Ltd., China Railway 25th Bureau Group, 266100, Qingdao, ChinaThe 5th Engineering Co., Ltd., China Railway 25th Bureau Group, 266100, Qingdao, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, 610031, Chengdu, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, 610031, Chengdu, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, 610031, Chengdu, ChinaKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, 610031, Chengdu, China[Objective] When the surrounding rock exhibits creep characteristics, the temporal factors in the adjacent construction process of shield tunnel undercrossing high-speed railway tunnels cannot be ignored. The speed of the adjacent construction may affect the time-dependent deformation behavior of the surrounding rock, thereby influencing the track settlement in the high-speed railway tunnels. Therefore, it is necessary to study the impact of adjacent construction of shield tunnel undercrossing the high-speed railway tunnels under the creep effect of the surrounding rock. [Method] In the case study of Changsha Metro Line 3 shield tunnel undercrossing the Liuyanghe Tunnel, based on the Cvisc creep model, the FLAC 3D finite difference software is used for numerical simulation. The impacts of the adjacent construction on surrounding rock under the classical elastoplasticity and the creep effect are compared and analyzed, together with the time-related factor influence like the driving speed of shield tunneling on the adjacent construction. [Result & Conclusion] Increased water content of argillaceous siltstone will lead to an increase in the final settlement deformation of high-speed railway tracks. So, the water content of the surrounding rock must be prioritized in creep effect analysis. Considering the creep effect of the surrounding rock and the time lag characteristics exhibited in the high-speed railway track settlement deformation during excavation, the creep effect of the surrounding rock may contribute positively to the deformation control in the above adjacent construction scenario. With the acceleration of the shield tunneling, the time lag becomes more obvious in the settlement deformation of the high-speed railway track. During adjacent construction, the creep effect of the surrounding rock can be fully utilized through "rapid excavation and prompt support" to achieve the goal of "trading time for space," thereby securing additional safety margins for the track post-construction settlement control.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.05.030.htmlrail transitshield tunneladjacent constructionsurrounding rock creep effect |
| spellingShingle | WANG Youqi MA Guosong QIU Wenge HUANG Haiyun ZHANG Du AI Xufeng Adjacent Construction Impact of Shield Tunnel Undercrossing High-Speed Railway Tunnels Based on Surrounding Rock Creep Effect Chengshi guidao jiaotong yanjiu rail transit shield tunnel adjacent construction surrounding rock creep effect |
| title | Adjacent Construction Impact of Shield Tunnel Undercrossing High-Speed Railway Tunnels Based on Surrounding Rock Creep Effect |
| title_full | Adjacent Construction Impact of Shield Tunnel Undercrossing High-Speed Railway Tunnels Based on Surrounding Rock Creep Effect |
| title_fullStr | Adjacent Construction Impact of Shield Tunnel Undercrossing High-Speed Railway Tunnels Based on Surrounding Rock Creep Effect |
| title_full_unstemmed | Adjacent Construction Impact of Shield Tunnel Undercrossing High-Speed Railway Tunnels Based on Surrounding Rock Creep Effect |
| title_short | Adjacent Construction Impact of Shield Tunnel Undercrossing High-Speed Railway Tunnels Based on Surrounding Rock Creep Effect |
| title_sort | adjacent construction impact of shield tunnel undercrossing high speed railway tunnels based on surrounding rock creep effect |
| topic | rail transit shield tunnel adjacent construction surrounding rock creep effect |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.05.030.html |
| work_keys_str_mv | AT wangyouqi adjacentconstructionimpactofshieldtunnelundercrossinghighspeedrailwaytunnelsbasedonsurroundingrockcreepeffect AT maguosong adjacentconstructionimpactofshieldtunnelundercrossinghighspeedrailwaytunnelsbasedonsurroundingrockcreepeffect AT qiuwenge adjacentconstructionimpactofshieldtunnelundercrossinghighspeedrailwaytunnelsbasedonsurroundingrockcreepeffect AT huanghaiyun adjacentconstructionimpactofshieldtunnelundercrossinghighspeedrailwaytunnelsbasedonsurroundingrockcreepeffect AT zhangdu adjacentconstructionimpactofshieldtunnelundercrossinghighspeedrailwaytunnelsbasedonsurroundingrockcreepeffect AT aixufeng adjacentconstructionimpactofshieldtunnelundercrossinghighspeedrailwaytunnelsbasedonsurroundingrockcreepeffect |