Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise Buildings
［Objective］The tunnel between Shengchanlu Station and Lihuanglu Station on Jinan Metro Line 2 passes in close proximity to the pile foundations of an elevated bridge and the Eurasia Electronics Building complex. To ensure the smooth implementation of shield tunneling and the safety of existing struc...
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| Format: | Article |
| Language: | zho |
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Urban Mass Transit Magazine Press
2024-12-01
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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.2024.12.024.html |
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| _version_ | 1850061816759058432 |
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| author | CHONG Jixin XU Qianwei HE Xiang ZHANG Kun XUE Hairu LIU Yi |
| author_facet | CHONG Jixin XU Qianwei HE Xiang ZHANG Kun XUE Hairu LIU Yi |
| author_sort | CHONG Jixin |
| collection | DOAJ |
| description | ［Objective］The tunnel between Shengchanlu Station and Lihuanglu Station on Jinan Metro Line 2 passes in close proximity to the pile foundations of an elevated bridge and the Eurasia Electronics Building complex. To ensure the smooth implementation of shield tunneling and the safety of existing structures, it is necessary to study the structural response mechanism of the surrounding soil and buildings due to shield tunnel side-passing construction. ［Method］Using finite element simulation, the deformation of adjacent bridge foundation, pile foundation, and ground surface before and after reinforcement during the right and left line shield tunnel crossings is examined. A numerical simulation process is comparatively analyzed with reference to field monitoring data. ［Result & Conclusion］When the construction interval between the left and right lines is within 200 rings, the disturbance effect from dual-line construction may have a superimposed impact, potentially causing excessive deformation of the surrounding soil and building structures, thus jeopardizing the usage safety. Implementing secondary grouting reinforcement within 3 m radius around the tunnel reduces the negative bending moment in the building floor slabs and the columns closest to the tunnel by 45.01%, while reducing the extent and magnitude of ground surface and surrounding building deformation within the design limits, indicating that the secondary grouting can effectively mitigate the stratum disturbance effects caused by shield tunneling. Field monitoring results confirm that soil and pile foundation deformations remain within acceptable limits during the shield tunneling. |
| format | Article |
| id | doaj-art-84fbb1265fad4ff8b14cccd25bbc1b52 |
| institution | DOAJ |
| issn | 1007-869X |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj-art-84fbb1265fad4ff8b14cccd25bbc1b522025-08-20T02:50:05ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2024-12-01271214615210.16037/j.1007-869x.2024.12.024Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise BuildingsCHONG Jixin0XU Qianwei1HE Xiang2ZHANG Kun3XUE Hairu4LIU Yi5Jinan Rail Transit Group Co., Ltd., 250101, Jinan, ChinaKey Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, 201804, Shanghai, ChinaKey Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, 201804, Shanghai, ChinaJinan Rail Transit Group Co., Ltd., 250101, Jinan, ChinaChina Railway Tenth Bureau Group First Engineering Co., Ltd., 250001, Jinan, ChinaJinan Rail Transit Group Co., Ltd., 250101, Jinan, China［Objective］The tunnel between Shengchanlu Station and Lihuanglu Station on Jinan Metro Line 2 passes in close proximity to the pile foundations of an elevated bridge and the Eurasia Electronics Building complex. To ensure the smooth implementation of shield tunneling and the safety of existing structures, it is necessary to study the structural response mechanism of the surrounding soil and buildings due to shield tunnel side-passing construction. ［Method］Using finite element simulation, the deformation of adjacent bridge foundation, pile foundation, and ground surface before and after reinforcement during the right and left line shield tunnel crossings is examined. A numerical simulation process is comparatively analyzed with reference to field monitoring data. ［Result & Conclusion］When the construction interval between the left and right lines is within 200 rings, the disturbance effect from dual-line construction may have a superimposed impact, potentially causing excessive deformation of the surrounding soil and building structures, thus jeopardizing the usage safety. Implementing secondary grouting reinforcement within 3 m radius around the tunnel reduces the negative bending moment in the building floor slabs and the columns closest to the tunnel by 45.01%, while reducing the extent and magnitude of ground surface and surrounding building deformation within the design limits, indicating that the secondary grouting can effectively mitigate the stratum disturbance effects caused by shield tunneling. Field monitoring results confirm that soil and pile foundation deformations remain within acceptable limits during the shield tunneling.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.12.024.htmlurban rail transitshield tunneladjacent constructiondisturbance response and control |
| spellingShingle | CHONG Jixin XU Qianwei HE Xiang ZHANG Kun XUE Hairu LIU Yi Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise Buildings Chengshi guidao jiaotong yanjiu urban rail transit shield tunnel adjacent construction disturbance response and control |
| title | Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise Buildings |
| title_full | Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise Buildings |
| title_fullStr | Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise Buildings |
| title_full_unstemmed | Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise Buildings |
| title_short | Disturbance Response and Control of Shield Construction Adjacent to Bridge and High-rise Buildings |
| title_sort | disturbance response and control of shield construction adjacent to bridge and high rise buildings |
| topic | urban rail transit shield tunnel adjacent construction disturbance response and control |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.12.024.html |
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